Class / Patent application number | Description | Number of patent applications / Date published |
701056000 | Having a plurality of preset maps, schedules, or patterns | 37 |
20080234904 | CONTINUOUSLY VARIABLE TRANSMISSION SHIFT CONTROL SYSTEM AND CONTROL METHOD THEREOF - A continuously variable transmission shift control system includes an input rotational speed monitoring unit that determines whether an actual input rotational speed of the CVT reaches the upper limit of a target input rotational speed, an acceleration request determining unit that determines whether a request for acceleration that is equal to or larger than a predetermined value is made, and a shift control inhibiting unit that inhibits shift control for reducing the target input rotational speed even when the actual input rotational speed reaches the upper limit of the target input rotational speed, in the case where the acceleration request determining unit determines that the request for acceleration that is equal to or larger than the predetermined value is made. | 09-25-2008 |
20080294318 | FEEDBACK ADJUSTMENT FOR OPEN-LOOP TORQUE CONTROL MAP - A variator torque control system and method utilize a hydraulic actuator to control the variator output via a torque control map, wherein the values of the torque control map are evaluated and modified during use of the map to improve map accuracy. In an example, errors in the map are evaluated to determine whether a system fault has occurred. | 11-27-2008 |
20080319620 | Device For Predictively Determining Gear Ratio Changes in Automatic Transmissions - A system for determining a gear ratio change in an automatic transmission of a motor vehicle, includes an electronic control unit, a device for acquiring information about a surroundings of the vehicle, a device for acquiring driver data and/or vehicle data, and a correction module connecting the electronic control unit to the transmission. The correction module is connected to the transmission, to the device for acquiring information about the surroundings, and to the device for acquiring driver data and/or vehicle data. In addition, a method for determining a gear ratio change in an automatic transmission of a motor vehicle using the devices of the system is provided. | 12-25-2008 |
20090055062 | GEAR SHIFTING CONTROL SYSTEM FOR WORK MACHINE - A work machine gear shifting control system provides gear shifting conditions for an automatic gear shifting mode in accordance with work site conditions. An area | 02-26-2009 |
20090112420 | METHOD AND APPARATUS FOR MONITORING A TRANSMISSION RANGE SELECTOR IN A HYBRID POWERTRAIN TRANSMISSION - A method to monitor integrity of a signal output from an operator-manipulable transmission range selector for a powertrain system includes equipping the transmission range selector with a range encoder and a direction encoder, determining a range state and a direction state based upon signals from the range encoder and the direction encoder, determining a discrete position of the transmission range selector based upon the range state and the direction state, and performing back rationality to verify the discrete position of the transmission range selector. | 04-30-2009 |
20090118951 | METHOD FOR DEVELOPING A TRIP COST STRUCTURE TO UNDERSTAND INPUT SPEED TRIP FOR A HYBRID POWERTRAIN SYSTEM - A powertrain system includes an engine mechanically coupled to an electro-mechanical transmission selectively operative in one of a plurality of transmission operating range states and one of a plurality of engine states. A method for controlling the powertrain system includes determining a current transmission operating range state and engine state, determining at least one potential transmission operating range state and engine state, determining preferability factors associated with the current and potential transmission operating range state and the engine state wherein the preferability factors associated with potential transmission operating range states include transmission input speed trip preferability factors, preferentially weighting the preferability factors for the current transmission operating range state and engine state, and selectively commanding changing the present transmission operating range state and engine state based upon the preferability factors. | 05-07-2009 |
20090118952 | CONTROL ARCHITECTURE AND METHOD FOR TWO-DIMENSIONAL OPTIMIZATION OF INPUT SPEED AND INPUT POWER INCLUDING SEARCH WINDOWING - A microprocessor driven two dimensional search engine examines transmission operating points within a plurality of search range spaces and assists in determining properties associated with the driveline at various operating points within the space. The size of the space is reduced by rearrangement of data. | 05-07-2009 |
20090143948 | Dynamic control system for continuously variable transmission - A continuously variable transmission is provided having a driven element. The continuously variable transmission also has a first operator input device configured to transmit a first displacement signal corresponding to a displacement of the first operator input device. The continuously variable transmission further has a second operator input device configured to transmit a second displacement signal corresponding to a displacement of the second operator input device. In addition, the continuously variable transmission has a third operator input device configured to transmit a transmission operating mode request. Furthermore, the continuously variable transmission has at least one sensor configured to sense at least one parameter indicative of an operating condition of the transmission. Additionally, the continuously variable transmission has a controller configured to determine a driven element output request based on the operating request mode, the first displacement signal, the second displacement signal, and the at least one sensed parameter. The controller is also configured to regulate an output of the driven element in response to the operating mode request, the driven element output request, and the at least one sensed parameter. | 06-04-2009 |
20090292429 | DEVICE AND METHOD FOR CONTROLLING TRANSMISSION MECHANISM, AND METHOD FOR CONTROLLING MOTOR VEHICLE - In a motor vehicle having a clutch and a transmission, an additional shift command is accepted during an already ongoing shift operation, thereby providing control that makes possible a responsive shift operation. When a shift command is issued during an ongoing shift operation and engagement operation of the clutch, the disengagement operation of the clutch and the dog insert operation of the transmission are conducted according a second schedule so that the dog insert operation of the transmission is conducted during the disengagement operation of the clutch, and a second shift operation including the re-engagement of the clutch is conducted. | 11-26-2009 |
20090292430 | SHIFT CONTROLLER OF VEHICLE AUTOMATIC TRANSMISSION - A shift controller includes: a shift control unit automatically shifting gears of an automatic transmission using a basic shift line map; a shift line map switching control unit switching from the basic shift line map to a high fluid temperature shift line map set on a lower vehicle speed side when a hydraulic fluid temperature in the automatic transmission is higher than a predetermined value; and a low power state determination unit determining whether a vehicle is in a low power state in which a required power related value used for gear shift determination is lower than a predetermined determination value. The shift line map switching control unit switches from the high fluid temperature shift line map back to the basic shift line map when the hydraulic fluid temperature is lower than the predetermined value and the vehicle is in the low power state. | 11-26-2009 |
20090312922 | Clutch control device and clutch control method - A clutch control device includes: a plurality of hydraulic clutches built into a transmission; a clutch switching pattern storage device in which a plurality of clutch switching patterns, each defining engage/release changeover timing with which the plurality of hydraulic clutches are engaged/released are stored in correspondence to individual speed change patterns adopted by the transmission; a clutch switching pattern selection device that selects a clutch switching pattern stored in the clutch switching pattern storage device in correspondence to a speed change pattern for the transmission at a time of speed change; and a hydraulic control device that executes hydraulic control for the plurality of hydraulic clutches in correspondence to the clutch switching pattern selected by the clutch switching pattern selection device. | 12-17-2009 |
20100010717 | CONTROL DEVICE AND CONTROL METHOD FOR AUTOMATIC TRANSMISSION - A control device executes a gear change control based on a first gear change map, in which the accelerator operation amount and the vehicle speed are used as parameters to define gear change timings, if a brake device is not actuated while the vehicle is running, and executes the gear change control based on a second gear change map, in which the brake actuation pressure and the vehicle speed are used as parameters to define gear change timings that positively utilize engine braking, if the brake device is actuated while the vehicle is running. The control device allows an automatic transmission to execute the gear change control in which engine braking is positively utilized according to conditions, contributing to diversified gear change control. | 01-14-2010 |
20100250076 | ACCELERATION BASED MODE SWITCH - The present invention provides a method of selecting and implementing a shift schedule for a transmission in a vehicle that includes an output speed sensor and a controller. The method includes measuring output speed with the output speed sensor and comparing the measured output speed to an output speed threshold. The controller receives throttle percentage and compares the throttle percentage to a throttle threshold. The method also includes calculating output acceleration and transmission gear ratio with the controller. The shift schedule is selected based on the measured output speed, calculated output acceleration, calculated transmission gear ratio, and throttle percentage. | 09-30-2010 |
20100305822 | System for determining a vehicle mass-based breakpoint for selecting between two different transmission shift schedules - A method is provided for selecting between economy mode and performance mode shift schedules for a transmission in a motor vehicle. A desired vehicle acceleration profile is specified, and a cumulative net tractive force of the vehicle is determined over the desired vehicle acceleration profile. A change in vehicle speed over the desired vehicle acceleration profile is also determined. A vehicle mass-based shift schedule breakpoint is computed as a function of the cumulative net tractive force of the vehicle and the change in vehicle speed over the desired vehicle acceleration profile. The vehicle mass-based shift schedule breakpoint is compared to a current vehicle mass indicator, and one of the economy mode and performance mode shift schedules is selected for operation of the transmission based on the comparison. Shifting between gear ranges of the transmission is controlled using the selected one of the economy mode and performance mode shift schedules. | 12-02-2010 |
20110029207 | CONTROL DEVICE FOR AUTOMATIC TRANSMISSION - A control device for an automatic transmission includes a speed change controller configured to generate a speed change instruction. A temperature calculator is configured to calculate a temperature of at least one frictional engagement element among frictional engagement elements. A rotation difference calculator is configured to calculate a rotation difference between an input and an output of the at least one frictional engagement element. A determining unit is configured to determine whether the frictional engagement element is engageable or non-engageable based on the temperature and the rotation difference of the frictional engagement element and a pattern of the speed change instruction. The delay unit is configured to delay engagement until the determining unit determines that the frictional engagement element is engageable, if the determining unit determines that the frictional engagement element is non-engageable when the speed change controller generates the speed change instruction. | 02-03-2011 |
20110224877 | INTEGRATED TRANSMISSION AND AUXILIARY GEARBOX CONTROL - A powertrain of a vehicle has a drive unit, a transmission and an auxiliary gearbox. Operation of the transmission and the auxiliary gearbox is controlled by a transmission control unit. The transmission control unit controls shifting of the auxiliary gearbox and the transmission while the vehicle is in operation. The auxiliary gearbox may be electronically shifted, independently of activity of the vehicle operator. | 09-15-2011 |
20110224878 | SHIFT CONTROL APPARATUS OF AUTOMATIC TRANSMISSION - There is provided a shift control apparatus of an automatic transmission in a vehicle including a constant speed traveling apparatus, which has a detecting device detecting a surrounding situation of the vehicle and operates according to the detected situation, and an automatic transmission capable of steplessly changing a transmission ratio, the shift control apparatus controlling the automatic transmission according to a shift map for changing the transmission ratio according to a traveling state. The shift control apparatus includes a plurality of shift maps, and a switching and selecting unit selecting and switching to one of the shift maps based on a shift-down request signal or a requested acceleration, which is outputted by a constant speed traveling control device of the constant speed traveling apparatus, according to the situation detected by the detecting device. | 09-15-2011 |
20120083980 | System For Selecting A Transmission Economy-Based Shift Schedule - The present invention provides a method of selecting an economy mode shift schedule for a transmission coupled to a motor vehicle. The method includes calculating vehicle acceleration and determining a change in accelerator pedal position. Also, a net tractive effort force of the vehicle is determined for a current gear range of the transmission. Also, the method includes comparing the net tractive effort force for the current gear range to a maximum tractive effort force for a desired gear range and selecting the economy mode shift schedule for the transmission based on the comparison. The method further includes controlling shifting between one or more gear ranges of the transmission according to the economy mode shift schedule. | 04-05-2012 |
20120136544 | METHOD AND SYSTEM FOR CONTROLLING VEHICLE SHIFTING - A method and a system for controlling vehicle shifting is configured to change shift patterns by reflecting a driver's shifting habits. The method may include running the vehicle according to a first shift pattern, detecting control parameters, determining whether the detected control parameters satisfies a first shift pattern conversion condition, and running the vehicle according to a second shift pattern when the first shift pattern conversion condition is satisfied. | 05-31-2012 |
20120303229 | Acceleration Based Mode Switch - The present invention provides a method of selecting and implementing a shift schedule for a transmission in a vehicle that includes an output speed sensor and a controller. The method includes measuring output speed with the output speed sensor and comparing the measured output speed to an output speed threshold. The controller receives throttle percentage and compares the throttle percentage to a throttle threshold. The method also includes calculating output acceleration and transmission gear ratio with the controller. The shift schedule is selected based on the measured output speed, calculated output acceleration, calculated transmission gear ratio, and throttle percentage. | 11-29-2012 |
20120330521 | CONTROL APPARATUS FOR AUTOMATIC TRANSMISSION - In a control apparatus for an automatic transmission having two input shafts connected to an output shaft of a prime mover; two output shafts; and two drive force transmission paths including clutches and synch devices each of which is able to connect a speed gear to the associated one of the output shafts, it is configured to discriminate whether shifting required by an operator is a first shifting pattern or a second shifting pattern, supply fluid pressure to one of the drive force transmission paths associated with a desired speed gear, while engaging the lockup clutch, when the shifting is the first shifting pattern, and supply the fluid pressure to the one of the drive force transmission paths associated with the desired speed gear, while disengaging the lockup clutch, when the shifting is the second shifting pattern. | 12-27-2012 |
20130035829 | USE OF ON-VEHICLE ACCELEROMETER TO ESTIMATE VEHICLE GRADE AND MASS WHILE VEHICLE IS IN MOTION - A system includes a grade estimation module that receives an accelerometer value and generates a grade estimate based on the accelerometer value, wherein the accelerometer value corresponds to acceleration of a vehicle and the grade estimate corresponds to a grade of the vehicle. A mass estimation module receives the accelerometer value and generates a mass estimate based on the accelerometer value, wherein the mass estimate corresponds to a mass of the vehicle. A shift control module at least one of selects and adjusts one of a plurality of shift schedules based on at least one of the grade estimate and the mass estimate and controls a transmission of the vehicle based on the one of the plurality of shift schedules. | 02-07-2013 |
20130046450 | DRIVING RESISTANCE-DEPENDENT SHIFTING DELAY - A control system for shifting an automatic transmission for a motor vehicle is provided. The control system is connected to a drive engine and a drive train. The control system includes a speed sensor configured for sensing a vehicle speed, an angular sensor configured for sensing an angle of an accelerator pedal of the motor vehicle, an acceleration sensor configured to sense an acceleration of the accelerator pedal, and a control electronic device configured for selecting a predetermined shifting curve for shifting the automatic transmission. The control electronic device also is configured to select from different shifting modes by measurement data of the speed sensor, angular sensor, and acceleration sensor. | 02-21-2013 |
20130060434 | VEHICLE GEAR-SHIFTING CONTROL APPARATUS - Disclosed is a vehicle gear-shifting control apparatus ( | 03-07-2013 |
20130073155 | AUTOFUNCTION CONTROL SYSTEM FOR MOTOR VEHICLES - An autofunction control system for motor vehicles comprising an engine, a transmission and an accelerator, the position of the accelerator defining a set ERPM, the system configured to define a desired percentage of maximum available power for each set ERPM, the system configured to control the transmission ratio of the transmission to load the engine at least to the desired percentage of power, wherein the desired percentage of power is a function of the set ERPM when the set ERPM is between a low threshold and a high threshold, and wherein the system is configured to control the transmission ratio to load the engine closest to the maximum available absolute power for the engine for a set ERPM above the high threshold ERPM. | 03-21-2013 |
20130073156 | SHIFT CONTROLLING APPARATUS FOR VEHICLE - Shift controlling apparatus for a vehicle which automatically carries out changeover between a plurality of shift gear stages based on an automatic shift map including a drive mode shift map and a sport mode shift map having an increased region in which a speed change ratio is low compared to the drive mode shift map and corresponds to more sporty operation than that of the drive mode shift map. The drive mode shift map has a first mode portion and a second mode portion having an increased region in which the change gear ratio is low compared to the first mode portion, but smaller than the increased region of the sport mode shift map. Changeover between the first and second mode portions is carried out based on an acceleration history in accordance with a throttle opening of the vehicle. | 03-21-2013 |
20130080002 | METHOD OF OPERATING A TRANSMISSION SYSTEM OF AN AUTOMOTIVE VEHICLE OF THE FOUR-WHEEL DRIVE TYPE COMPRISING A MEANS OF MECHANICALLY COUPLING THE FIRST AND SECOND AXLES - A method of operating a transmission system of an automotive vehicle, the transmission system including a mechanism of mechanically coupling first and second axles of the transmission system, a status of the coupling mechanism defining a number of transmission modes. In the method, if the automotive vehicle crosses a speed threshold for a determined length of time, for example between 30 seconds and two minutes, the transmission system switches from a first mode in which the torque that can be transmitted by the mechanical coupling mechanism is fixed, into a different transmission mode. | 03-28-2013 |
20130138308 | CONTROL DEVICE OF A VEHICLE - A control device of a motor vehicle for controlling a gear change in a transmission of the motor vehicle by generating control signals for transmission shift elements utilized during a gear change. If a gear increment of the gear change to be performed is greater than two gears, and/or if the driver activates a sport gear shift program, and/or if a detection device detects a sporty type of driver, and/or if the driver actuates a kickdown of an accelerator pedal, and/or if the driver actuates the accelerator pedal with a temporal gradient that is greater than a defined limit, the control device generates control signals for the shift elements, being utilized for performing the gear change, with an interruption of tractive force, and the control device, in all other instances, generates control signals for the shift elements, being utilized for performing the gear change, without interrupting the tractive force. | 05-30-2013 |
20140019022 | System For Selecting A Transmission Economy-Based Shift Schedule - The present invention provides a method of selecting an economy mode shift schedule for a transmission coupled to a motor vehicle. The method includes calculating vehicle acceleration and determining a change in accelerator pedal position. Also, a net tractive effort force of the vehicle is determined for a current gear range of the transmission. Also, the method includes comparing the net tractive effort force for the current gear range to a maximum tractive effort force for a desired gear range and selecting the economy mode shift schedule for the transmission based on the comparison. The method further includes controlling shifting between one or more gear ranges of the transmission according to the economy mode shift schedule. | 01-16-2014 |
20140107900 | Acceleration Based Mode Switch - The present invention provides a method of selecting and implementing a shift schedule for a transmission in a vehicle that includes an output speed sensor and a controller. The method includes measuring output speed with the output speed sensor and comparing the measured output speed to an output speed threshold. The controller receives throttle percentage and compares the throttle percentage to a throttle threshold. The method also includes calculating output acceleration and transmission gear ratio with the controller. The shift schedule is selected based on the measured output speed, calculated output acceleration, calculated transmission gear ratio, and throttle percentage. | 04-17-2014 |
20140121920 | ACCELERATION BASED MODE SWITCH - The present invention provides a method of selecting and implementing a shift schedule for a transmission in a vehicle that includes an output speed sensor and a controller. The method includes measuring output speed with the output speed sensor and comparing the measured output speed to an output speed threshold. The controller receives throttle percentage and compares the throttle percentage to a throttle threshold. The method also includes calculating output acceleration and transmission gear ratio with the controller. The shift schedule is selected based on the measured output speed, calculated output acceleration, calculated transmission gear ratio, and throttle percentage. | 05-01-2014 |
20140172253 | SYSTEM AND METHOD FOR CONTROLLING A TRANSMISSION - A system for selecting shift schedules of a transmission of a vehicle configured to change gears according to two or more shift schedules includes a controller. The controller is configured to estimate mass of the vehicle based on a plurality of accelerations of the vehicle from a standstill, and estimate a road load of the vehicle based on the estimated mass. The controller is also configured to estimate a grade of terrain over which the vehicle is travelling based on the estimated mass of the vehicle. The controller is further configured to select between at least a first shift schedule and a second shift schedule based on at least one of the estimated mass of the vehicle, characteristics of the terrain over which the vehicle is travelling, the estimated grade of the terrain over which the vehicle is travelling, and functions capable of being performed by the vehicle. | 06-19-2014 |
20140336888 | CONTROL METHOD FOR AN AUTOMATED GEARBOX OF AN AUTOMOTIVE VEHICLE, SYSTEM FOR CONTROLLING SUCH A GEARBOX AND AUTOMOTIVE VEHICLE EQUIPPED WITH SUCH A SYSTEM - A method is provided for controlling an automated gearbox of an automotive vehicle that is adapted to work in a first automatic mode and at least one second driver initiated mode which is different from the first mode. This method includes monitoring the vehicle driving behavior is monitored, analyzing the vehicle driving behavior is and determining it to be satisfactory or non satisfactory and, when the driver requests switch of the automatic gearbox from the first mode to the second mode, the switch order is followed only if the vehicle driving behavior is determined to be satisfactory, and/or, when the automated gearbox is in a second driver initiated mode, causing a switch of the gearbox to a first automatic mode if the vehicle driving behavior is determined to be non-satisfactory. The system includes an arrangement to automatically perform these steps. | 11-13-2014 |
20150094919 | VEHICLE TRANSMISSION - A vehicle transmission includes a main transmission, a sub-transmission, a sub-transmission shift position sensor, and a map switching device. The main transmission is an automatic transmission configured to perform gear shifting according to a gear shift map selected between a first gear shift map and a second gear shift map in accordance with a throttle opening degree and a vehicle speed. The sub-transmission is configured to change rotational speed of rotational drive force output from the main transmission by manually selecting a sub-transmission gear position between a drive position and a low position having a reduction ratio larger than a reduction ratio of the drive position. The map switching device is configured to perform switching between the first gear shift map and the second gear shift map in accordance with sensing signals from the sub-transmission shift position sensor. | 04-02-2015 |
20150344103 | BICYCLE GEAR CHANGING APPARATUS - A bicycle gear changing apparatus is basically provided with a controller that includes memory with a plurality of pre-stored shift tables. The controller is configured to control a shifting operation of at least one of a first gear changing device and a second gear changing device based on a selected one of the pre-stored shift tables. | 12-03-2015 |
20160059696 | METHOD FOR CONTROLLING A MOTOR VEHICLE OPERATED IN ALL-WHEEL DRIVE AT TIMES - A method for controlling a motor vehicle ( | 03-03-2016 |
20160185351 | VEHICLE CONTROL SYSTEM AND METHOD - Some embodiments of the present invention provide a control system for a motor vehicle having a first user-operable transmission selector means for selecting a forward operating mode of a transmission corresponding to travel in a forward direction and a reverse operating mode of a transmission corresponding to travel in a reverse direction opposite the forward direction, the control system comprising: a user-operable gear selector configured in a first functional mode to, upon receipt of a user input, select between a plurality of forward direction gear ratios, and wherein the user-operable gear selector is re-configured in a second functional mode to, upon receipt of a user input, select between the forward operating mode and the reverse operating mode. | 06-30-2016 |