| Patent application number | Description | Published |
|---|
| 20090043466 | Method and apparatus for controlling anteroposterior acceleration of a vehicle - A control apparatus controlling anteroposterior acceleration of a vehicle by controlling a motive power generation apparatus mounted on the vehicle, which is also provided with a staged transmission apparatus that operates on gear ratios. The motive power generation apparatus has an output shaft producing a rotation force in response to a command to be requested. The rotation force is transmitted to the drive wheels via the staged transmission apparatus. A feedback manipulated variable is calculated to control the production of the rotation force of the motive power generation apparatus so that an actual value of anteroposterior acceleration of the vehicle is controlled at a target value thereof. The calculated feedback manipulated variable is used as the command. When the staged transmission apparatus is in the switchover control of the gear ratios, the manipulated variable is is limited from being calculated (for example, stopped from being calculated). | 02-12-2009 |
| 20090043473 | APPARATUS FOR ESTIMATING ROAD SURFACE GRADIENT AND VEHICULAR CONTROL APPARATUS USING THE SAME - An apparatus is provided to estimate a gradient of a road surface on which a vehicle travels. The apparatus comprises acquisition, estimation, and compensation members. The acquisition member acquires at least one of acceleration of the vehicle calculated on changes in a travel speed of the vehicle and acceleration sensed from a force applied to the vehicle. The estimation means estimates the gradient of the road surface based on the acquired acceleration. The compensation member compensates the acquired acceleration in terms of influence of noise superposed on the acceleration, depending on an operational condition of the vehicle. The compensated acceleration is used by the estimation. The compensation is carried out by cutting off the noise by a filter, for example. | 02-12-2009 |
| 20090048751 | Method and apparatus for controlling acceleration of a vehicle - A control apparatus controls acceleration of a vehicle provided with a motive power generation apparatus and brake apparatuses. For the control, the control apparatus comprises calculation and actuating blocks. The calculation block calculates torque to be requested, based on a difference between an actual value of the acceleration and a target value thereof and a gain for feedback controlling the actual value of the acceleration to the target value thereof. The gain is differentiated in value between in a first case in which the brake apparatuses are used for the feedback control and a second case in which the brake apparatuses are not used for the feedback control. The actuating block actuates the motive power generation apparatus and the brake apparatuses based on the calculated torque. The value of the gain in the first case is made larger than the value of the gain in the second case. | 02-19-2009 |
| 20090055068 | VEHICLE DRIVE CONTROL DEVICE - A vehicle drive control device includes an initially determined request acceleration calculation means for calculating an initially determined request acceleration, an automatic drive control means for receiving the initially determined request acceleration and applying a predetermined torque to each wheel, a torque calculation means for calculating an allowable torque not causing a slip at each wheel when the allowable torque is applied thereto, on the basis of a vertical load applied to thereto and a friction coefficient of a road surface, a limit acceleration calculation means for calculating a limit acceleration acting on the vehicle in a case where the calculated allowable torque is applied to each wheel, and a request acceleration determination means for obtaining a request acceleration on the basis of the limit acceleration and the initially determined request acceleration, and for outputting the request acceleration, replacing the initially determined request acceleration, to the automatic drive control means. | 02-26-2009 |
| 20090076699 | VEHICLE AUTOMATIC OPERATION CONTROL DEVICE - It is an object of the present invention to provide a vehicle automatic operation control device that can perform automatic operation of a vehicle while the actual acceleration favorably tracks the target acceleration. The device comprises a target required torque calculating part ( | 03-19-2009 |
| 20100009807 | Vehicle control device - In a vehicle control device, a brake feedback control unit calculates a brake feedback torque T | 01-14-2010 |
| 20100121549 | APPARATUS FOR CONTROLLING ACCELERATION OF VEHICLE - An apparatus is provided for controlling acceleration of a vehicle to a target acceleration. In the apparatus, a target acceleration calculator calculates the target acceleration. A provisional acceleration setting unit sets a provisional target acceleration such that a change rate of the provisional target acceleration is limited to a target limitation value. The provisional target acceleration is used during a step during which the acceleration of the vehicle is changed to the target acceleration. A drive power calculator calculates a drive power to obtain the provisional target acceleration. In the provisional acceleration setting unit, an initial value of the provisional target acceleration depends on a running state of the vehicle. | 05-13-2010 |
| 20100138123 | Running control apparatus and running control program for the apparatus - A running control apparatus calculates a target driving or braking torque in a calculating block to control the vehicle driven or braked by this torque at a target speed against a running resistance changed with running circumstances of the vehicle. In a control block, when a driver-required braking torque based on the braking operation of the driver is smaller than the target braking torque, the running control for the vehicle is performed to brake the vehicle by the target braking torque. When the driver-required braking torque becomes higher than the target braking torque, the running control is stopped, and the driver manually brakes the vehicle by the driver-required braking torque. When the driver-required braking torque is decreased to be lower than the target braking torque or a predetermined braking torque corresponding to the release of the braking operation, the running control is restarted. | 06-03-2010 |
| 20110022284 | Acceleration control device - In a cruise assist ECU, when a vehicle drive state is changed from a running state to a state immediately before vehicle stop or from a stop state to a state immediately after vehicle start, a feedback torque gain compensation part changes a feedback torque gain to a second set value, and maintain it during the state immediately before vehicle stop or the state immediately after vehicle start. Because the second set value is smaller than a first set value, a response delay is increased in feedback control of the feedback torque control part when the first set value of the feedback torque gain is switched to the second set value. This makes it possible to slowly change the FB control value during the transition state in elapse of time, and prevent a brake or damping torque generated in the vehicle from being excessively changed in FB control. | 01-27-2011 |
