Electro-hydraulic control apparatus

Electro-hydraulic control apparatus

  • CN 101,463,898 A
  • Filed: 12/17/2008
  • Published: 06/24/2009
  • Est. Priority Date: 12/18/2007
  • Status: Active Grant
First Claim
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1. electro-hydraulic control apparatus, the vehicle transmission that is used to have at least five forward gearss and a reverse gear, this device comprises:

  • -first, second and the 3rd reverse shift fork (12,16,18), each reverse shift fork moves engaging gear separately at least one engagement positio,-first, second and the 3rd hydraulic actuator (22,26,28), each hydraulic actuator be arranged for control reverse shift fork (12,16,18) separately the motion of at least one engagement positio separately and-guiding valve (52), selectively move to one of at least three operating positions, select hydraulic actuator (22 separately at this guiding valve of each operating position (52), 26,28), wherein first operating position is stroke end position and corresponding to the selection of first hydraulic actuator (22), and wherein second operating position also is stroke end position and corresponding to the selection of second hydraulic actuator (26)This control gear is characterized in that this first hydraulic actuator (22) connects first gear (I) at least and is connected reverse gear (R) at least with second hydraulic actuator (26).

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