Operating position select device for automatic transmission
AssigneeCalsonic Kansei Corporation
InventorsTadao Kozu, Yukitsugu Hirota, Eiji Yamatani
Life of this patent
Estimating the term…
Abstract
An operating position select device for an automatic transmission has a select lever unit having a select lever operated by a driver; a mode shift unit mounted on the automatic transmission to shift operation modes of the automatic transmission; a first and second control cables and others for mechanically connecting the select lever and the mode shift unit, and an actuator for outputting assist torque to shift the mode shift unit. An operating angle sensor detects an operating angle of the select lever and an assist angle sensor detects an assist angle of the assist actuator. A control unit controls a drive current supplied to the assist actuator based on the operating angle and the assist angle.
Claims20
An operating position select device for an automatic transmission comprising:
- a select lever unit having a select lever operated by a driver;
- an operating position sensor which detects an operating position of said select lever and outputs an operating position signal;
- a mode shift unit mounted on the automatic transmission to shift operation modes of the automatic transmission;
- a detent mechanism including a detent pin and a detent plate connected with a manual valve, the detent plate being formed with a cam having bottom portions respectively corresponding to select positions and each arranged between adjacent top portions and the pin being pressed toward the cam where the detent plate and the pin are moved relative to each other according to a select operation of said select lever;
- a mechanically connecting means which mechanically connects said select lever and said mode shift unit with each other;
- an assist actuator which is arranged between said select lever and said mode shift unit and outputs assist torque to an intermediate portion of said mechanically connecting means to shift the mode shift unit;
- an assist position sensor which detects an assist position of said assist actuator and outputs an assist position signal;
- and
- a control unit which receives the operating position signal and the assist position signal and controls a drive current to be supplied to said assist actuator based on a position difference between the operating position and the assist position so as to obtain the assist torque that can reduce resistance force caused by the detent mechanism.
Dependencies are inferred from the claim text.