Kabushiki Kaisha Toyoda Jidoshokki Seisakusho

Kabushiki Kaisha Toyota Chuo Kenkyusho

Fujitsu Corporation

Kabushiki Kaisha Toyota Jidoshokki

Kabushiki Kaisha Toyota Chuo Kenkyusho Seisakusho

Toshihide Narita

Masatoshi Yamada

Eiichi Yasuda

Yoshiyasu Uchida

Hideo Akima

Masaya Hyodo

Seiichi Hata

Yoshio Kadokawa

Koji Niinomi

Kiyoshi Kitagawa

Shingo Yamada

Kazunori Ito

A skid steer vehicle having a set of right driving wheels and a set of left driving wheels, a right driving unit for driving the right driving wheels, a left driving unit for driving the left driving wheels, and a pitching control system to suppress a pitching motion of the vehicle, the pitching control system being provided with a pitching motion detector or detectors to generate a signal indicating occurrence of the pitching motion of the vehicle, and a control unit for individually controlling the right and left driving units until suppression of the pitching motion of the vehicle is detected.

Pitching control system for a skid steer vehicle

Forward/reverse drive controller for controlling a rapid forward/reverse

A system for controlling engine speed for a vehicle such as a fork-lift. The system has an accelerator pedal for controlling an engine speed, and a control lever for controlling the direction of movement of the vehicle, or the system is provided with a seesaw type accelerator pedal for controlling the engine speed and the direction of movement of the vehicle. An EXNOR gate is provided for detecting deceleration of the engine while the accelerator pedal is depressed. When deceleration is detected, the throttle valve is returned to an engine idling position or the supply of fuel is cut. Thus, an effective engine braking can be obtained when the direction of movement of the vehicle is changed while the accelerator pedal is depressed. A window comparator is provided for detecting the area near the end of deceleration, so that the engine speed is increased prior to the commencement of acceleration.

System for controlling engine speed when direction of vehicle changed

A control device for use in a cargo handling vehicle in which a single power plant provides both the vehicle drive and the power to the cargo handling device has a continuously variable transmission. The cargo handling device is actuated by means of a hydraulic pump. Whether or not the cargo handling device is in operation the operator need not adjust the degree of depression of a drive pedal to maintain constant vehicle speed because automatic compensation means are provided for that purpose. The demands upon the vehicle operator are accordingly reduced.

Running control device on cargo handling vehicles

This invention relates to a cargo-handling vehicle equipped with a cargo-handling apparatus and having a single power plant adapted to commonly drive a hydraulic pump for driving and a hydraulic pump for cargo-handling. A driving command signal in the form of an analog or digital electric signal output from a driving operation device in response to the operated amount thereof is output to first conversion means. The first conversion means converts the driving command signal or the operated amount of the driving operation device to power plant revolution data for driving which is determined by the preset function, and then outputs the data to selection means. A cargo-handling command signal in the form of an analog or digital electric signal output from a cargo-handling operation device in response to the operated amount thereof is output to second conversion means. The second conversion means converts the cargo-handling command signal or the operated amount of the cargo-handling operation device to power plant revolution data for cargo-handling which is determined by the preset function, and then outputs the data to the selection means. The selection means selects at least one of the data and then outputs the selected data to control means for regulating the speed of the power plant. The control means regulates the power plant speed in accordance with the input data.

Revolution controller for a single power plant in cargo-handling vehicles

Growing community of inventors

Obu, Japan

Toshihide Narita