Title:
変速機のシフト制御装置
Document Type and Number:
Japanese Patent JP4447070
Kind Code:
B2
Abstract:
The present invention intends to provide a shift control apparatus for transmission which can reduce or prevent the speed-change shock and/or noise at the balk point where the sleeve engages with the ring in the shift push-in process. In order to achieve the above object, a shift control apparatus for a transmission comprises a plural sets of paired free-rotate gears, a plural sleeves 17, 18, a plural sets of paired synchronize rings 27 to 29, an actuator 65, 70 for actuating the sleeve, a control means 50 for controlling the actuator based on a speed-change command. The control means 50 controls the actuator 70 so that the sleeve 18 is driven by a first drive force Qmax upon starting of a speed-change operation, and is driven by a second drive force Q2 smaller than the first drive force at least during a first time period T3 'to T4 'from a time before a balk point B of the sleeve where the sleeve engages with the synchronize ring in a shift push-in operation.
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Inventors:
Ueda Yukio
Yoshinori Ito
Yoshinori Ito
Application Number:
JP14513199A
Publication Date:
April 07, 2010
Filing Date:
May 25, 1999
Export Citation:
Assignee:
Aisin AI Co., Ltd.
International Classes:
F16H3/12; F16D23/06; F16H61/00; F16H61/08; F16H61/28; F16H59/68; F16H61/30
Domestic Patent References:
| JP62101949A | ||||
| JP5263835A | ||||
| JP61116155A |
Attorney, Agent or Firm:
Hiroshi Okawa