Patent application number | Description | Published |
20110295480 | VEHICLE CONTROL APPARATUS - Provided is a vehicle control apparatus that can prevent the deterioration of drivability. An ECU executes a reduction control when speed reduction of a vehicle is determined as a control permit condition is established, and does not execute the reduction control when the speed reduction is not determined as the condition is not established. Additionally, when determined that a vehicle behavior stabilization control that stabilizes behavior of the vehicle is being executed, the ECU determines the speed reduction of the vehicle by changing a speed reduction threshold value for determining the speed reduction. This makes it possible to adequately determine the speed reduction of the vehicle even when a drive state of the vehicle is changed by the execution of the vehicle behavior stabilization control, thereby allowing the execution and non-execution of the reduction control to be switched reflecting a driver's intention and thus preventing the drivability from being deteriorated. | 12-01-2011 |
20120271526 | VEHICLE CONTROL APPARATUS - Disclosed is a vehicle control apparatus which can prevent drivability from being deteriorated. The ECU is operative to determine whether the previously depressed brake is in the “ON” or “OFF” state when the vehicle is determined as being not travelling on a bad road, the accelerator being in the “ON” state, and the brake being in the “ON” state. When the ECU is operative to determine that the previously depressed brake is in the “OFF” state, and the vehicle is in the reduced speed state, the ECU is operative to perform the reduction process of the engine output under the condition that the simultaneous depressions of the accelerator and brake pedals are held for less than 10 seconds, and the vehicle speed is 7 km/hr or more. When, on the other hand, the ECU determines that the vehicle is travelling on the bad road, the ECU is operative not to perform the reduction process. | 10-25-2012 |
20120290179 | VEHICLE CONTROL APPARATUS - Disclosed is a vehicle control apparatus which can prevent the deterioration of drivability. The ECU can set a control accelerator opening degree to be converted when a control permission condition is established. The control accelerator opening degree is equal to or larger than an accelerator lower limit which is larger than an idle determination value for determining an automatic stopping of an engine by an eco-run. The control accelerator opening degree thus set can prevent the drivability from being deteriorated without the automatic stopping of the engine being caused even if the accelerator opening degree is converted to reduce the torque of the engine with the establishment of the control permission condition. | 11-15-2012 |
20120290188 | VEHICLE CONTROL APPARATUS - Disclosed is a vehicle control apparatus which can prevent a drivability of a vehicle from being deteriorated. When an ECU determines that an accelerator is “ON” and a brake is “ON”, the ECU determines whether or not the brake previously depressed is “OFF”. When the ECU determines that the brake previously depressed is “OFF” and that the vehicle is in the reduced speed state, the vehicle control apparatus is operative to execute an engine output reduction control process under the condition that the simultaneous depressions of the accelerator and brake pedals continues for less than 10 seconds and the vehicle speed is not less than 7 km/hr. When the simultaneous depressions of the accelerator and brake pedals continues for no less than 10 seconds, the ECU is operative to make an output reduction prohibition flag “ON” and not to execute the engine output reduction control process until a predetermined time elapses. | 11-15-2012 |
20130024090 | VEHICLE CONTROL APPARATUS - Disclosed is a vehicle control apparatus which can prevent drivability from being deteriorated. An ECU is operative to set a reduction speed threshold value to determine a driver's braking intention on the basis of the correlation in the depression amount of an accelerator pedal, the depression amount of a brake pedal, and a travel state of a vehicle caused by the depression amounts of the accelerator pedal and the brake pedal. The ECU is further operative to change the reduction speed threshold value on the basis of the detected drive state to compare the travel state calculated on the basis of the detected drive state with the changed reduction speed threshold value to determine the driver's braking intention, thereby making it possible to determine the driver's braking intention without detecting the operation amount of a driver and to accurately estimate the driver's braking intention. This makes it possible to change the reduction control between executed and not executed, and to improve the drivability. | 01-24-2013 |
20130030674 | VEHICLE CONTROL APPARATUS - Provided is a vehicle control apparatus that can prevent the drivability from being deteriorated. The vehicle control apparatus has an ECU that determines an acceleration/deceleration is caused by the disturbances and determines the control permission condition is not established, when an acceleration calculated by the variation of the wheel rotation speed detected by the wheel rotation speed sensor is more than or equal to a third deceleration threshold value, or less than or equal to a second deceleration threshold value. Therefore, the vehicle control apparatus can prohibit the reduction control of the driving force and can eliminate an influence of the variation of the wheel rotation speed caused by the disturbances when an unreasonable variation of the wheel rotation speed is detected as the acceleration, even under the condition that the vehicle travels on an extremely uneven road surface or a slippery road surface, thereby appropriately determining the deceleration of the vehicle. As a result, the vehicle control apparatus can selectively execute or not execute the reduction control to reflect the intention of the driver, thereby preventing the drivability from being deteriorated. | 01-31-2013 |
20130030675 | VEHICLE CONTROL APPARATUS - Provided is a vehicle control apparatus that can prevent the drivability from being deteriorated. The vehicle control apparatus has an ECU which determines, when the control permission condition is not established, not to execute the reduction control in the case that the accelerator opening degree is smaller than or equal to the accelerator threshold value or the vehicle speed is smaller than or equal to the vehicle speed threshold value, even if a depression of an accelerator pedal is detected and a depression of a foot brake pedal is detected. Therefore, the vehicle control apparatus can stop the torque reduction control to prevent the reduction of the engine output contrary to the intention of the driver in the case that an impact to the vehicle is small such that a load more than necessary is not applied to the vehicle even if the accelerator pedal and the brake pedal are both depressed by the driver. As a result, the vehicle control apparatus can improve the operability of the vehicle in the situations such as hill start and overcoming steps, thereby preventing the drivability from being deteriorated. | 01-31-2013 |
20130191002 | DRIVE ASSIST SYSTEM AND DRIVE ASSIST METHOD - A drive assist system includes: an acceleration change pattern setting portion that sets an acceleration change pattern of a vehicle that is a pattern of change in acceleration of the vehicle that occurs while the vehicle travels on a road; and a drive plan generating portion that generates a drive plan for the vehicle based on the acceleration change pattern set by the acceleration change pattern setting portion. The drive assist system generates a drive plan satisfying three conditions, namely, a kinetic model of the vehicle, a passing point of each corner, and an acceleration change pattern, using a solution to two-point boundary-value problems. | 07-25-2013 |
Patent application number | Description | Published |
20120259524 | VEHICLE CONTROL APPARATUS - For providing a vehicle control apparatus which can prevent the deterioration of the drivability, the ECU ( | 10-11-2012 |
20130006490 | DRIVE CONTROL DEVICE FOR VEHICLE - Precise operation of an accelerator operating member ( | 01-03-2013 |
20130133455 | VEHICLE DRIVE CONTROL APPARATUS - Provided is a vehicle drive control apparatus including a shift mechanism configured to be able to selectively switch its shift position to either a driving position or a non-driving position; and a controller configured to control the drive force output from a motor serving as a drive source of the vehicle according to operation of an accelerator, to transmit the drive force from the motor to wheels when the shift position is in the driving position, and to stop the transmission of the drive force from the motor to the wheels when the shift position is in the non-driving position. The controller also performs drive force suppression processing to control the drive force, when the shift position is switched from the non-driving position to the driving position with the accelerator turned ON, such that the acceleration of the vehicle does not exceed an upper limit of acceleration. | 05-30-2013 |
20130143716 | DRIVE CONTROL APPARATUS FOR VEHICLE - A drive control apparatus for a vehicle includes: a control unit that controls drive force output from an engine in accordance with operation of an accelerator pedal; and a shift mechanism capable of selectively switching a shift position to a driving position or a non-driving position. The shift mechanism transmits the drive force to wheels when the shift position is in the driving position, and interrupts transmission of the drive force when the shift position is in the non-driving position. The control unit executes a drive force restriction process of reducing the drive force when the shift position is switched from the non-driving position to the driving position while the accelerator pedal is in an on state, and, when the switching is from a neutral position, the control unit changes a mode of reducing the drive force in accordance with a continuation time of the neutral position. | 06-06-2013 |
20130166161 | DRIVING CONTROL SYSTEM FOR VEHICLE - A vehicle has a shift mechanism and a position detection device that detects an operation position of the shift mechanism. A transmission is brought to a power transmission state when an operation unit of the shift mechanism is operated to a driving position, and is brought to a power interrupt state when the operation unit is operated to a non-driving position. A driving force limitation process for reducing the driving force of an internal combustion engine is executed when it is determined that the non-driving position has been shifted to the driving position on the basis of the operation position of the operation unit as detected by the position detection device. The driving force limitation process is prohibited when it is determined that the vehicle is traveling and that the operation unit is not operated to any of the operation positions. | 06-27-2013 |
20140107907 | VEHICLE CONTROL APPARATUS - A vehicle is equipped with an auxiliary that is driven by the output of an internal combustion engine and which is capable of obtaining drive force by transmitting the output of the internal combustion engine to driving wheels. If an air conditioning compressor is being driven during engine idling of the internal combustion engine, an electronic control apparatus implements output-increase control for increasing the output of the internal combustion engine in comparison to when the air conditioning compressor is not being driven. If the force applied to the accelerator pedal (Pac) is equal to or more than a prescribed value (Pth), output-reduction control for reducing the output of the internal combustion engine by initiating engine idling of the internal combustion engine, and prohibiting the drive of the air conditioning compressor, is implemented. | 04-17-2014 |
20140129098 | VEHICLE DRIVE CONTROL DEVICE - When a driver attempts to hurriedly start driving a stopped vehicle, for example, the driver may, without realizing it, begin operating an accelerator pedal before shifting a shift lever from a non-drive position to a drive position. In such a situation, when the shift lever is shifted from a non-drive position to a drive position while the accelerator pedal is being operated, a drive power limiting process is implemented for limiting the drive power when the drive power is output from a drive source in accordance with the amount that the accelerator is being operated. As a result, when the shift lever is shifted from a non-drive position to a drive position in the abovementioned manner, it is possible to restrict starting of the vehicle, which is caused by the transmission of drive power from the drive source to the wheels. This reduces the strange sensation experienced by the driver. | 05-08-2014 |
20140136061 | VEHICLE DRIVE CONTROL DEVICE - When a driver attempts to hurriedly start driving a stopped vehicle, for example, the driver may, without realizing it, begin operating an accelerator pedal before shifting a shift lever from a non-drive position to a drive position. In such a situation, when the shift lever is shifted from a non-drive position to a drive position while the accelerator pedal is being operated, a drive power limiting process is implemented for limiting the drive power when the drive power is output from a drive source in accordance with the amount that the accelerator is being operated. As a result, when the shift lever is shifted from a non-drive position to a drive position in the abovementioned manner, it is possible to restrict starting of the vehicle, which is caused by the transmission of drive power from the drive source to the wheels. This reduces the strange sensation experienced by the driver. | 05-15-2014 |
20140297153 | VEHICLE DRIVING FORCE CONTROL DEVICE - An electronic control unit adjusts drive force generated by an engine in accordance with the amount of manipulation of an accelerator pedal. When the manipulation amount of the accelerator pedal meets a predetermined condition, the electronic control unit executes drive force limiting control for limiting the drive force generated by the engine and changes the degree of limiting of the drive force during the execution of the drive force limiting process according the gradient of the road surface. | 10-02-2014 |
20140330500 | APPARATUS FOR CONTROLLING VEHICLE - An electronic control unit reduces output of an engine using a detection value of an acceleration sensor such that acceleration of a vehicle does not exceed a predetermined threshold value. In a case where there is an abnormality in the acceleration sensor, the electronic control unit sets the acceleration threshold value to be greater than that in a case where there is no abnormality, and the electronic control unit limits the vehicle speed to a predetermined value or slower. | 11-06-2014 |