Toyota Jidosha Kabushiki Kaisha

Toyota Jidosha Kogyo Kabushiki Kaisha

Akito Oonishi

Akihiro Kida

Masashi Takagi

Motonari Obayashi

Michihito Shimada

Shinya Kodama

Hiroshi Shimada

Takamasa Kitamura

Haruo Watanabe

Takeshi Tokuda

A brake override system (BOS) () prioritizes braking when both an accelerator and a brake are operated simultaneously by reducing the required accelerator operation amount value that is used to control drive force so that it is lower than the actual accelerator operation amount. The BOS () thus achieves a balance between hill-start performance after operation by the BOS () is cancelled and stopping performance during operation of the BOS () by increasing the required accelerator operation amount value at the time at which the return of the required accelerator operation amount value to the actual accelerator operation amount is initiated when the simultaneous operation of the accelerator and the brake ends.

Vehicle control apparatus

An electronic control unit performs a reduction control for reducing vehicle drive force when the accelerator and the brake are operated simultaneously. The electronic control unit also varies the amount of decrease in the vehicle drive force during the reduction control and conditions under which the reduction control is implemented depending on the order of the accelerator operation and brake operation resulting in the above-noted simultaneous operation. For example, the amount of decrease in the vehicle drive force is less when the brake is operated first in comparison with when the accelerator is operated first. Thus, it is possible to operate the vehicle drive force in accordance with the intention of the driver.

Vehicle control device

An electronic control unit () stops output suppression control for an engine () at the time of simultaneous depression of an accelerator pedal () and a brake pedal () when the depression of the brake pedal () is erroneously detected due to an ON-failure of a stop lamp switch () even if the brake pedal is not depressed.

Vehicle drive control in response to brake detection errors

When simultaneous depression of an accelerator pedal () and a brake pedal () is detected, an electronic control unit () inhibits a downshift of an automatic transmission () and performs output suppression control for an engine (), thereby making it possible to suppress the increase of vehicle drive force caused by the downshift and maintain a constant vehicle deceleration rate by an easier operation.

Control device for vehicle

A driving force generated by an engine is transmitted to driving wheels (not shown) via an automatic transmission. The engine is provided with an electronically controlled throttle body and the like. An E-ECU performs cooperative control when necessary, so that an output of the engine is obtained in accordance with a load applied thereto. On the other hand, the automatic transmission is provided with a torque converter. Even in the case where the aforementioned predetermined condition has been fulfilled in a T-ECU, if the E-ECU detects a deterioration in performance of the electronically controlled throttle body or the like, the performance of neutral control is prohibited.

Vehicular control device and method of controlling the same

The present invention relates to a fuel cut system for an electronic control system of an engine. When the deceleration of engine rotation is large during fuel cut, the fuel cut is interrupted at the rotational speed higher than when the deceleration is small, and thereby the engine stop caused by the fuel cut during racing period or the like is prevented.

Growing community of inventors

Nagoya, Japan

Akito Oonishi