Toyota Jidosha Kabushiki Kaisha

Fujitsu Ten Limited

Hiroaki Tabuchi

Tatsuo Teratani

Masumi Nagasaka

Hiroshi Sato

Minoru Takahashi

Junji Takahashi

Masaki Hitotsuya

Tetsuya Tada

Akira Miyazaki

Takeshi Tachibana

Shigetaka Akabori

Ken Koibuchi

Kazuhiko Sakakibara

Nobuyuki Okabe

Yu Sakai

Yasutaka Oda

Masato Chiba

An automatic control apparatus for an engine detects an operation position of a mechanical shift lever for shifting gears of a transmission, automatically stops the engine when a predetermined condition is satisfied in the case where the operation position is at a first specific range, and automatically restarts the engine in the case where, after the operation position is switched from the first specific range to a second specific range while the engine is stopped, the second specific range is maintained for a predetermined time. When the operation position is switched from the first specific range to the second specific range while the engine is stopped, it is determined whether or not the driver has an intention to start the vehicle, and if YES, the predetermined time is set to be shorter than when it is determined that there is no intention to start the vehicle.

Automatic control apparatus for engine

A control system of a vehicle includes an electronic control unit. The electronic control unit is configured to (a) measure characteristics of a battery installed on the vehicle, (b) determine whether the battery is a designated battery or a non-designated battery, based on at least one of the characteristics, and (c) determine whether an idling stop function of the vehicle is permitted to be executed, based on a threshold value of at least one of the characteristics of the battery. The threshold value is set to a first threshold value when the battery is determined as the designated battery, and set to a second threshold value that is different from the first threshold value when the battery is determined as the non-designated battery.

Control system and control method of vehicle

A control apparatus for a vehicle having an idle stop function includes a measurement unit that measures the characteristic of a battery provided in the vehicle, an identification unit that identifies the type of the battery based on the measured characteristic, and a control unit that stops the idle stop function in a case where the identified type of the battery indicates that the battery is not for an idle-stop vehicle, and permits execution of the idle stop function in a case where the execution of the idle stop function is permitted by an input of a predetermined signal from an external terminal even when the identified type of the battery indicates that the battery is not for the idle-stop vehicle.

Control apparatus, vehicle, and control method

An automotive constant speed cruise control system for a vehicle includes a controller for automatic speed change for automatically changing over a speed stage in a transmission in accordance with the relationship between a throttle valve opening degree and a car speed; a controller for constant speed traveling having a constant speed traveling control function for operating a car at a target car speed by controlling, based on a duty ratio, the throttle valve opening degree according to the actual car speed and a transmission limiting function for sending out a signal for prohibiting selection of the maximum speed stage in the transmission to the controller for automatic speed change for a specified time when the car speed lowers, and a transmission limiting function capable of being externally started by inputting a speed change signal representing that the transmission has been shifted down from a maximum speed to the controller for constant speed traveling.

Automotive constant speed cruise control system

An automotive constant speed cruise control system for a vehicle comprises a controller for automatic speed change for changing over automatically speed stage in a transmission by a relation between a throttle valve opening degree and a car speed, a controller for constant speed traveling having a constant speed traveling control function for cruising a car at a target car speed by controlling based on a duty ratio the throttle valve opening degree according to a traveling car speed and a transmission limiting function for sending out a signal for prohibiting selection of maximum speed stage in the transmission to the controller for automatic speed change for a specified time when the car speed lowers, and the transmission limiting function capable of being started from outside by inputting a speed change signal representing that the transmission is shifted down from a maximum speed to the controller for constant speed traveling.

A control device for maintaining a constant speed of an automobile, having an internal combustion engine with a throttle valve and an actuator for the throttle valve. A degree of opening of the throttle valve is decided to bring the speed of the automobile to a desired set speed, corrected in accordance with running conditions by cyclically repeating an integral calculation at a first pattern to provide an integral correction value when a difference exists between the detected speed and the set speed. This integral correcting value is quickly returned at a second pattern greater than the first pattern when the integral correction value becomes greater than a predetermined value and the relationship between the detected speed and the set speed is reversed.

Control device for maintaining constant speed of an automobile

A cruise control system for a vehicle having an internal combustion engine is provided with a throttle valve operated by a diaphragm actuator irrespective of a depression of an accelerator pedal by an operator of the vehicle. The system is provided with a control circuit for controlling an electric signal applied to the actuator. A fixed level signal is first applied to the actuator for a short period after a cruise mode operation has commenced, so that the diaphragm is quickly moved to prevent a temporary decrease in the vehicle speed. After the elapse of the predetermined time, the level of the electric signal is controlled by feedback so that the vehicle speed is controlled to a target speed. A feedback gain initially has a first value for a period after the feedback control is commenced and then has a second value which is smaller than the first value. Furthermore, the feedback gain may have a third value at a transient state from a condition where the feedback gain has the first value and a condition where the feedback gain has the second value.

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Toyota, Japan

Hiroaki Tabuchi