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Method-and-apparatus-for-controlling-electronically-controlled-transmissions

Two gap read/write head assembly

S OF PREFERRED EMBODIMENTS Referring now to FIGS. 1 and 2, there is shown a two gap read/write head ...

Cathode-ray tube with deflection system

A cathode-ray tube according to the invention is therefore characterized in that the couplings ...

Process and apparatus for the exact determination of the periodic position of a television vertical synchronizing signal

The present invention relates to a process of the type discussed, which does not exhibit this ...

Synchronizing circuit

The synchronizing circuit disclosed herein according to various inventive arrangements provides low ...

Horizontal synchronizing signal separation circuit

The horizontal synchronizing signal separation circuit of this invention, which overcomes the above-...

Controlling the trace of a rotary head

In accordance with this invention, a method and apparatus are provided for controlling the position ...

Scan tracking apparatus for helical scan video tape recorder

Therefore, it is an object of the present invention to provide a scan tracking apparatus for a ...

Correction circuits for projection television

It is therefore an object of the present invention to provide correction circuits for a projection ...

Vertical image correction for projection TV

We claim: 1. In a projection television having a projecting screen and at least one cathode ray ...

Disk loading mechanism for recording and reproducing apparatus

Accordingly, it is the main object of the present invention to provide a recording and reproducing ...

Method and apparatus for controlling electronically controlled transmissions

Details

Inventors: Hattori, Toshihiro; Ishihara, Masaki; Uriuhara, Makoto;
Assignee: Isuzu Motors Limited (Tokyo, JP)
Primary Examiner: Braun; Leslie A.
Assistant Examiner: Wright; Dirk
Attorney, Agent or Firm: Staas & Halsey

An electronically controlled vehicle transmission has a gear shifting operation which is controlled by determining an optimum transmission gear based on shift map data stored in an electronic control device, a detected vehicle speed and a detected degree of depression and speed of movement of an accelerator pedal. If the accelerator pedal is abruptly depressed while the vehicle is running, such an abrupt depression is detected by a pedal speed detector which produces a signal to cause an electronic control device to interrupt the gear shifting operation. The electronic control device starts the gear shifting operation again after the accelerator pedal depression is stabilized.

DETAILED DESCRIPTION Accordingly, it is an object of the present invention to provide a method of and an apparatus for controlling an electronically controlled vehicle transmission which prevent a change in transmission gears when the accelerator pedal has been depressed to a large depth and select a transmission gear suited for an accelerator pedal depression and a vehicle speed when the pedal depression is stabilized.
Another object of the present invention is to provide a method of and an apparatus for controlling an electronically controlled vehicle transmission without having automobile operation suffer from any delay caused by the gear shifting operation.
According to the present invention, there is provided a method of controlling an electronically controlled vehicle transmission having an actuator controlled by an electronic control device dependent on driving conditions of the vehicle for changing gear ratios, comprising the steps of monitoring a speed of movement of an accelerator pedal, detecting when the speed of movement of the accelerator pedal exceeds a predetermined value, locking a gear changing operation when the speed of movement of the accelerator pedal exceeds the predetermined value, and effecting the gear shifting operation after the completion of the movement of the accelerator pedal.
According to the present invention, an apparatus is provided for controlling an electronically controlled transmission of a vehicle, comprising a transmission actuator for changing gear ratios in the transmission, an electronic control device for controlling operation of the transmission actuator, an accelerator pedal, means for detecting the speed of movement of the accelerator pedal, means for generating a signal when the speed of movement of the accelerator pedal exceeds a predetermined value, and means for temporarily locking the operation of the transmission actuator controlled by the electronic control device in response to the signal produced when the speed of movement of the accelerator pedal exceeds the predetermined value

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