Toyota Jidosha Kabushiki Kaisha

Hiroyuki Hanamura

Toshio Tanahashi

Norimi Asahara

Kaiji Itabashi

Ken Koibuchi

Shin Noumura

Keisuke Takeuchi

Yoji Takanami

Yuki Minase

Masashi Takagi

Tsutomu Miyazaki

Michihito Shimada

Toshiya Oishi

Kenichi Okaya

Kazuo Nozu

Norihiro Nishiumi

Kaji Itabashi

In a control device for a vehicle that controls a revolution speed of a drive power source or a gear ratio of a transmission coupled to an output side of the drive power source in the vehicle equipped with the drive power source and the transmission, the control device is configured to determine an index that is based on a running state of the vehicle, and to control a required revolution speed of the drive power source or a required gear ratio for the transmission on the basis of the index.

Control device for vehicle

In a vehicle control system, an index used to set a running characteristic of a vehicle is obtained based on a running condition of the vehicle. A change of the index that makes behavior of the vehicle crisper is more likely to occur than a change of the index that makes the behavior of the vehicle milder. When it is determined that the vehicle is in a turning condition, the change of the index or a change of the miming characteristic based on the index is less likely to occur than when it is determined that the vehicle is not in the turning condition.

Vehicle control system

In a vehicle control system that obtains an index based on a running condition of a vehicle and changes a running characteristic of the vehicle according to the index, includes index setting means for making a change in the index in response to a change in the running condition in a direction toward crisp running of the vehicle, faster than a change in the index in response to a change in the running condition in such a direction as to reduce crispness with which the vehicle is running.

A vehicle control system obtains an index indicating a running condition of a vehicle on the basis of a vehicle parameter indicating a motion of the vehicle and then sets a running characteristic of the vehicle in accordance with the index. The vehicle control system includes a noise reduction unit that is configured to obtain the index on the basis of the vehicle parameter of which a fluctuating component that fluctuates because of a driver's driving operation or the influence of a running road surface.

An object of the present invention is to improve the easiness of steadily maintaining the magnitude of treading on a foot-operated operating element while mitigating a feeling of treading on a wall at the time of start of treading on the operating element. A pedal-operated operation device includes a pedal arm, a support housing, a spring for urging the pedal arm in a direction of return, a first shim and a second shim. A frictional engagement portion of the second shim is higher in maximum static friction force than a frictional engagement portion of the first shim. The second shim has a region in which the elastic modulus of the second elastic deformation portion is lower than that of the first shim, in terms of elastic deformation at the time when the pedal arm moves relative to the support housing.

Pedal-operated device

A vehicle control system capable of improving drivability by reflecting driving environment and driving preference accurately on driving characteristics. The vehicle control system is configured to change an index for setting driving characteristics of the vehicle. When accelerations Gx and Gy are changed, a sportiness index is changed in a different manner depending on a detail of an operation for changing accelerations Gx and Gy executed by a driver, thereby reflecting the driving preference of the driver appearing on the operation can be reflected on sportiness of the vehicle.

Provided is a vehicle control apparatus which can prevent drivability from being deteriorated. The vehicle control apparatus comprises an ECU adapted to determine whether or not a brake is 'off' or the state of the hysteresis width of an accelerator opening degree exceeding a predetermined hysteresis width is continued for a predetermined period of time during the execution of an engine torque reduction control process. When the ECU determines that the brake is 'off' or that the state of the hysteresis width of an accelerator opening degree exceeding a predetermined hysteresis width is continued for a predetermined period of time, the ECU performs an engine torque restoration process of the engine. Therefore, the vehicle control apparatus can allow the continued execution and non-execution of the reduction control to be switched therebetween in accordance with the driver's travel intention, thereby making it possible to prevent the drivability from being deteriorated.

Vehicle control apparatus

During a process of increasing the throttle opening when the accelerator pedal is depressed while the vehicle is in a decelerating condition, first throttle opening holding control for holding the throttle opening substantially constant is performed. During the process of increasing the throttle opening after the first throttle opening holding control is finished, second throttle opening holding control for holding the throttle opening substantially constant again is performed.

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Gotenba, Japan

Hiroyuki Hanamura