Mazda Motor Corporation

Advics Co., Ltd.

Ikutoku Gakuen

Fuminori Kato

Daisuke Umetsu

Osamu Sunahara

Lodewijk Wijffels

Oliver Nehls

Toshio Yasutake

Kazuki Sato

Masato Abe

Yoshio Kano

Makoto Yamakado

Jouji Nishioka

Takatoshi Tsukano

Shohei Yamada

Daisaku Ogawa

Tomohiko Adachi

Naoki Hiraga

Hiroyuki Ogata

A vehicle control method is applied to a vehiclein which a front wheelis driven by an engine, and the method includes a basic torque setting step of setting basic torque to be generated by the engine, based on an operational state of the vehicle; a deceleration torque setting step of setting deceleration torque, based on an increase in steering angle of a steering apparatusmounted on the vehicle; a torque generation step of controlling the engineso that torque based on the basic torque and the deceleration torque is generated; and a deceleration torque changing step of changing the deceleration torque, based on a vehicle-width-direction mounting position of a steering wheeland an operation direction of the steering wheelwhen the steering angle is increased. Thus, vehicle posture control is performed in consideration of the vehicle-width-direction mounting position of the steering wheeland the operation direction of the steering wheel, so that a driver fatigue reduction effect of the vehicle posture control can be secured appropriately.

Vehicle control method, vehicle system, and vehicle control apparatus

A vehicle control method is applied to a vehiclein which a front wheelis driven by an engine, and the method includes a basic torque setting step of setting basic torque to be generated by the engine, based on an operational state of the vehicle; an acceleration torque setting step of setting acceleration torque, based on a reduction in steering angle of a steering apparatusmounted on the vehicle; a torque generation step of controlling the engineso that torque based on the basic torque and the acceleration torque is generated; and an acceleration torque changing step of changing the acceleration torque, based on a vehicle-width-direction mounting position of a steering wheeland an operation direction of the steering wheelwhen the steering angle is reduced. Thus, vehicle posture control is performed in consideration of the vehicle-width-direction mounting position of the steering wheeland the operation direction of the steering wheel, so that a driver fatigue reduction effect of the vehicle posture control can be secured appropriately.

Disclosed is a vehicle attitude control system for controlling the attitude of a vehicle in which a road wheel suspension is configured such that a roll axis of a vehicle body inclines downwardly in a forward direction. The vehicle attitude control system includes: a lateral acceleration sensor operable to detect a lateral acceleration; a brake actuator operable to apply a braking force; and a brake control device operable, based on a traveling state of the vehicle, to generate the braking force, wherein the brake control device is configured to execute vehicle attitude control of applying, to an inner rear road wheel, a larger braking force when the lateral acceleration of the vehicle is relatively large than when the lateral acceleration is relatively small, thereby suppressing uplift of an inner rear portion of the vehicle body.

Vehicle attitude control system

The present invention provides a method of controlling a vehicle () in which rear road wheels () are driven. The method includes: a step of selecting a first pedal mode in which an acceleration is set based on a depression amount of an accelerator pedal, or a second pedal mode in which the acceleration and a deceleration are set; a step of setting a basic torque based on a driving state of the vehicle; a step of setting an incremental torque to allow the basic torque to be increased in accordance with an increase in steering angle; and a step of generating a torque which is determined by adding the incremental torque to the basic torque, wherein the incremental torque setting step includes setting the incremental torque to different values between when the first pedal mode is selected and when the second pedal mode is selected.

Vehicle control method and system

A motion control device of a vehicle comprises: a steering angle controller which controls a steering angle of a steered wheel so that an actual turning controlling variable becomes a target turning controlling variable; and a braking force controller which controls a vehicle braking force so that the actual turning controlling variable becomes the target turning controlling variable. The control of the steering angle controller is stopped by detecting a timing with which the braking force controller detects an oversteering state of the vehicle to start a braking force control.

Motion control device of vehicle

A motion control device of a vehicle comprises: a steering angle controller which controls a steering angle of a steering wheel so that an actual turning control variable becomes a target turning control variable; and a braking force controller which controls a vehicle braking force so that the actual turning control variable becomes the target turning control variable. The braking force controller selectively uses, as a steering angle signal for control, a first steering angle signal which reflects a steering angle compensation quantity compensated by the steering angle controller at the time of the oversteering of the vehicle is reflected, and a second steering angle signal which does not reflect the steering angle compensation quantity.

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Hiroshima, Japan

Fuminori Kato