Class / Patent application number | Description | Number of patent applications / Date published |
701094000 | Having gradient responsive control to suppress hunting, overshooting, or undershooting | 22 |
20090037069 | System and Method for Controlling Vehicle - A system for controlling a vehicle that controls driving force and braking force such that a vehicle speed is maintained at a target vehicle speed. More specifically, when the vehicle speed exceeds the target vehicle speed, the system for controlling a vehicle maintains the driving force at or above a predetermined value, and applies braking force to the vehicle such that the vehicle speed is maintained at the target vehicle speed. This provides the vehicle with sufficient driving force for uphill driving following the downhill driving, and thus to travel uphill without significant speed loss. In other words, the vehicle ascends the uphill road smoothly at an approximately constant speed. | 02-05-2009 |
20090048755 | Vehicle speed control device and method - A vehicle speed control device calculates a desired axle torque for maintaining a speed of a vehicle to a set speed, and conducts cruise control. Specifically, the vehicle speed control device calculates a drive force including a feedforward component corresponding to the set speed and a travel resistance against the travel of the vehicle, and a feedback component corresponding to a deviation of the set speed from the actual speed of the vehicle as a desired axle torque. The vehicle speed control device interrupts the cruise control when a requested drive axle torque requested by an accelerator operation during the cruise control exceeds the desired axle torque, and restarts the cruise control when the requested drive axle torque becomes lower than the desired axle torque. | 02-19-2009 |
20090187324 | Vehicle Stability Control System and Method - A vehicle stability control system comprises a 5-sensor cluster and a stability controller configured to communicate with the 5-sensor cluster and receive signals corresponding to a lateral acceleration, a longitudinal acceleration, a yaw rate, a roll rate, and a pitch rate from the 5-sensor cluster. The stability controller can also be configured to determine a braking amount or a throttle amount to maintain vehicle stability. The system also comprises a brake controller configured to communicate with the stability controller and receive a braking request from the stability controller, and a throttle controller configured to communicate with the stability controller and receive a throttle request from the stability controller. The system may also comprise a braking or throttling command computed based on various scenarios detected by measured and calculated signals. | 07-23-2009 |
20100121550 | VEHICLE TRAVEL CONTROL DEVICE - A vehicle travel control device has a engine that controls an engine based on a driving target controlled variable; a brake that controls a brake device based on a braking target controlled variable; and a automatic travel control that calculates the driving target controlled variable and/or braking target controlled variable so that a vehicle speed of a vehicle becomes a target vehicle speed, and outputs the driving target controlled variable to the engine and the braking target controlled variable to the brake, the vehicle travel control device being configured such that, upon detection of an acceleration operation during the vehicle travel control, the automatic travel control calculates a target vehicle speed for vehicle travel control by the brake device, so that the target vehicle speed becomes higher than a current vehicle speed of the vehicle. | 05-13-2010 |
20110282558 | ADAPTIVE CRUISE CONTROL METHOD ON INCLINE - Disclosed herein is an adaptive cruse control method on an incline to improve traveling performance and stoppage maintenance performance on an incline. During adaptive cruise control, a gradient of a road is estimated based on a vehicle acceleration and longitudinal acceleration to enable compensation of a resistance torque with respect to the gradient of the road, which prevents deterioration of a traveling speed of a vehicle on an incline. Also, compensating for a brake torque to prevent the vehicle from being pushed rearward when the vehicle is stopped or starts to go on an incline may prevent deterioration of performance on an incline. | 11-17-2011 |
20120089313 | SYSTEM AND METHOD FOR REDUCING BRAKE FADE - A vehicle braking control system includes a vehicle brake associated with a wheel on the vehicle. A pedal activated by an operator of the vehicle controls application of the brake. An electronic control unit determines a grade mode of the vehicle and controls application of the brake independent of the operator activating the pedal while in an automatic braking mode. The electronic control unit sends a control signal to apply the brake in a manner to reduce brake fade while controlling a speed of the vehicle when the electronic control unit is in the automatic braking mode and the vehicle is in a downhill grade mode. | 04-12-2012 |
20120259527 | VEHICLE CONTROL DEVICE - Provided is a vehicle control device which generates a speed pattern of a vehicle and controls traveling of the vehicle based on the speed pattern, including: rear vehicle travel situation checking means for checking a travel situation of a rear vehicle which travels behind the vehicle; wave-like travel speed pattern generating means for generating a wave-like travel speed pattern where acceleration travel and free run travel are alternately repeated based on the travel situation of the rear vehicle; and control means for controlling the traveling of the vehicle based on the wave-like travel speed pattern. | 10-11-2012 |
20130030668 | METHOD AND SYSTEM FOR CONTROLLING A VEHICLE CRUISE CONTROL - A method and a vehicle cruise control system performing the steps of driving with the cruise control active and set to maintain a set target speed, registering a first position when driving in an uphill slope of a hill where vehicle retardation has decreased vehicle speed to a first speed below the set target speed and where the retardation has decreased to zero or acceleration has just started in order to increase speed to the set target speed, registering a desired speed in a second position downhill of the crest at a first distance after the crest, based on the desired speed calculating a minimum speed at the crest with which the vehicle has to pass the crest in order to be able to reach the desired speed with zero fuel consumption during the first distance, controlling speed between the first position and the crest so that the vehicle reaches the minimum speed when passing the crest. | 01-31-2013 |
20130238210 | GRADE PROPULSION SYSTEM AND METHOD - A grade propulsion system provided herein includes: a propel pump; a brake system; an operator control configured to receive and transmit a propel command and a Hill Mode activation; and a controller electronically coupled to the propel pump, the brake system, and the operator control, the controller configured, after activation of the Hill Mode and the propel command, to transmit a propel current to the propel pump and disengage the brake system when the propel current is equal to or greater than a cracking current plus an offset current. | 09-12-2013 |
20130297174 | Method and System For Utilizing The Energy Storage Provided By A Vehicle's Mass In The Form Of Potential And Kinetic Energy To Optimize Fuel Consumption - A method and system that utilizes the energy storage provided by a vehicle's mass in the form of potential and kinetic energy to optimize the fuel consumption. The system of the present invention is composed of an elevation database, a localization mechanism, and a speed optimization mechanism/engine. The optimization engine receives a desired speed range from the operator such as a max speed and min speed input, and a route or elevation profile form the elevation database. Then, utilizing the elevation database, the localization mechanism and a weight estimate the system and method optimizes the current speed to minimize fuel consumption by way of setting and adjusting the cruise control speed. The route and the weight estimate may be provided or predicted by the optimization engine. | 11-07-2013 |
20140156163 | AUTO CRUISE DOWNHILL CONTROL METHOD FOR VEHICLE - Disclosed herein is an auto cruise downhill control (ADC) method for a vehicle, whereby, when a speed of the vehicle exceeds an auto cruise setting speed, the speed of the vehicle is automatically adjusted to be the auto cruise setting speed by using an engine control unit (ECU) and an electronic stability control (ESC) unit. In other words, when a current vehicle speed exceeds a predetermined value compared to a driver's setting speed for auto cruise, automatic braking activation control is performed by the ESC unit to adjust the speed of the vehicle to be the auto cruise setting speed when the vehicle is operating on a steep decline. Additionally, when a driver makes a steep downward adjustment of the setting speed, automatic braking activation control is performed by the ESC unit to decrease the speed of the vehicle to a downwardly adjusted level at an accelerated rate. | 06-05-2014 |
20140343818 | METHOD AND MODULE FOR DETERMINING OF AT LEAST ONE REFERENCE VALUE FOR A VEHICLE CONTROL SYSTEM - A method for determining a reference value for controlling a vehicle's speed by a vehicle control system is described. The method includes: making a first prediction and a second prediction of the speed along a horizon, the first prediction based on an engine torque that retards the vehicle as compared with a conventional cruise control, and the second prediction based on an engine torque that accelerates the vehicle as compared with the conventional cruise control; comparing the first prediction and second prediction, respectively, with a lower limit value and/or an upper limit value, which delineate a speed range within which the speed is to be maintained; and determining the reference value based on at least one of the respective comparisons and the first prediction and second prediction so that the set speed is within the speed range bounded by the lower and upper limit values. | 11-20-2014 |
20150306957 | SYSTEMS AND METHODS FOR VEHICLE SPEED MANAGEMENT - Controlling a speed of a vehicle based on at least a portion of a route grade and a route distance divided into a plurality of route sections, each including at least one of a section grade and section length. Controlling the speed of the vehicle is further based on determining a cruise control speed mode for the vehicle for each of the plurality of route sections and determining a speed reference command of the vehicle based on at least one of the cruise control speed mode, the section length, the section grade, and a current speed. | 10-29-2015 |
20150321670 | VEHICLE SPEED AND COASTING CONTROL METHOD AND SYSTEM - A method and a system for controlling a cruise control and a transmission in a vehicle over the course of a road section, wherein prior to the road section, the vehicle has applied coasting and utilizes the cruise control. A reference speed v | 11-12-2015 |
20150329115 | METHOD AND SYSTEM FOR GUIDANCE OF DRIVER BEHAVIOUR DURING DRIVING OF VEHICLES - A method for guidance of driver behaviour during driving of a vehicle ( | 11-19-2015 |
20160016586 | METHOD FOR ANTICIPATORY CONTROLLING A CRUISE CONTROL OF A MOTOR VEHICLE - A method for predictive control of a cruise control system of a motor vehicle in which a selection is made from a variety of control variants in order to set a target speed with respect to a stretch of road ahead. In so doing, the selection is made as a function of a gradient profile of the stretch of road ahead. In order to now implement an optimum predictive control with respect to fuel consumption with low complexity, the gradient profile is segmented through allocation to gradient ranges, which are determined as a function of the target speed. A respectively suitable control variant is then selected on the basis of at least one segment of the gradient profile. | 01-21-2016 |
20160023658 | VEHICLE SPEED CONTROL SYSTEM AND METHOD - A system for controlling the speed of a vehicle, the system being operable to cause the vehicle to operate in accordance with a value of vehicle set-speed, the system being operable to allow a user to change the current value of vehicle set-speed in discrete steps by means of user input means, a magnitude of the discrete steps being determined by the system in dependence on a vehicle operational state. | 01-28-2016 |
20160039415 | VEHICLE SPEED CONTROL SYSTEM - A control system for a vehicle operable to implement a speed control function, the control system being operable to: receive an input of a target speed at which the vehicle is intended to travel; determine an instantaneous value of a primary target speed torque parameter corresponding to an amount of torque that should be developed at a given position in a powertrain in order to control the vehicle to travel at the target speed; and filter by means of filter means a value of a torque parameter input thereto to generate a filtered torque parameter value, the system being operable to command the powertrain to develop at said position an amount of torque corresponding to the filtered torque parameter value, wherein the system is operable to input to the filter means a secondary target speed torque parameter value determined in dependence on the primary target speed torque parameter value and a current value of filtered torque parameter generated by the filter means. | 02-11-2016 |
20160159352 | APPARATUS AND METHOD FOR CONTROLLING AUTO CRUISE SPEED OF VEHICLE - A method for controlling an auto cruise speed of a vehicle includes: determining a feedback torque for correcting a speed error between a target speed set by a driver of the vehicle and a current speed that is a feedback speed detected by a speed sensor of a vehicle; determining a drive resistance according to the target speed by inputting the target speed; determining a first feedforward torque according to the determined drive resistance; determining a second feedforward torque based on a vehicle inertia and a variation of the target speed by inputting the target speed; and outputting a command for generating a wheel required torque that is corrected by adding the first feedforward torque and the second feedforward torque to the feedback torque. | 06-09-2016 |
20160185349 | Method and Device for Automatic Longitudinal Dynamics Control of a Motor Vehicle - Automatically controlling the longitudinal dynamics of a vehicle includes ascertaining a state variable dependent on the state of at least one wheel brake, detecting overshoots and/or undershoots of a limiting value of the state variable, ascertaining information about a vehicle traveling ahead, setting at least one control of a feedback control system and controlling the longitudinal dynamics of the vehicle as a function of the at least one control parameter. A sensing device used to ascertain the state of the at least one wheel brake an the using device is used to ascertain information about the vehicle traveling ahead, and an evaluating, setting and controlling unit is used to evaluate the state of the at least one wheel brake and the information about the vehicle traveling ahead for setting the at least one control parameter and for controlling the longitudinal dynamics of the vehicle as a function thereof. | 06-30-2016 |
20160185350 | VEHICLE SPEED CONTROL SYSTEM AND METHOD - Embodiments of the present invention provide a vehicle speed control system operable to cause a vehicle to operate in accordance with a target speed value by controlling an amount of brake torque applied by a braking system and an amount of drive torque applied by a powertrain to one or more wheels of the vehicle, the system being operable to detect a leading wheel step event in which a leading wheel encounters an abrupt increase in surface gradient, the system being operable in dependence on the detection of a leading wheel step event to cause brake torque to be applied against drive torque in anticipation of a trailing wheel step event corresponding to the leading wheel step event, the system being operable to cause the application of brake torque at least until a trailing wheel has travelled a sufficient distance to reach the location at which a leading wheel experienced the leading wheel step event. | 06-30-2016 |
20170232944 | CONTROLLING THE BRAKING OF A VEHICLE DESCENDING A SLOPE | 08-17-2017 |