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특허 상세정보

Programmable electronic tracking control for vehicles with hydrostatic transmissions

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B62D-011/04    F15B-018/00   
미국특허분류(USC) 180/648 ; 60/395
출원번호 US-0626157 (1975-11-03)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 17  인용 특허 : 0
초록

In a vehicle wherein power is applied to each track or wheel through a hydrostatic transmission and control system including: a displacement control unit for regulating each transmission; a steering control valve associated with each displacement control unit for modifying the operation of the displacement control unit; and a speed and direction control unit for applying hydraulic pressure to each of the displacement control units for controlling the basic direction and speed of the vehicle; wherein the maintenance of the desired direction of operation o...

대표
청구항

An electronic tracking control for use in vehicles where power is applied to the tracks or wheels through a plurality of hydrostatic transmissions comprising: means for regulating the speed output of each hydrostatic transmission; means for generating electrical pulse signals representing the speed output of each hydrostatic transmission; an electronic circuit for comparing the phases of each of said electrical pulse signals and generating a phase difference signal representing the difference in the speed of each hydrostatic transmission; electronic cont...

이 특허를 인용한 특허 피인용횟수: 17

  1. Nozari Farhad. Aircraft hydraulic pump control system. USP1999025865602.
  2. Schulte, David; Vora, Kushan; Arndt, Bruce. Control system for a machine with a dual path electronically controlled hydrostatic transmission. USP2016069371898.
  3. Oswald Norman D. (Duncanville TX) Mankey Harry S. (Dallas TX) Franklin Carl M. (Midlothian TX) Wilhelm James M. (Arlington TX) Osborn Ronnie M. (Big Spring TX). Control system for an adverse terrain vehicle. USP1987104702843.
  4. Barbagli Rino O. (Borgaretto ITX). Device for correcting deviations from rectilinear movement of tracked vehicles having separate transmissions for right a. USP1985074531601.
  5. Satzler Ronald L.. Differential steer system for a machine. USP1999015857532.
  6. Fox, Ivan E.; Hauser, Raymond; Wyatt, Christopher K.. Electronic steering apparatus. USP2018019854736.
  7. Wyatt, Christopher K.; Goetzelmann, Alan D.; Fox, Ivan E.; Vogel, Andy; Hauser, Raymond. Electronic steering apparatus. USP2014098844658.
  8. Hauser, Raymond; Bennett, Michael L.; Bell, Douglas W.. Front steering module for a zero turn radius vehicle. USP20180710035537.
  9. Hauser, Raymond; Bennett, Michael L.; Bell, Douglas W.; Steenburg, Bryce E.. Front steering module for a zero turn radius vehicle. USP2015028950520.
  10. Vora, Kushan; Shoemaker, Joseph R.; Schulte, David; Tandel, Swapnil. Load control for a machine with a dual path electronically controlled hydrostatic transmission. USP2015059037360.
  11. Nakatani, Yasunobu; Horiuchi, Yoshifumi. Propelling transmission control apparatus for a working vehicle having a hydrostatic stepless transmission. USP2005026849028.
  12. Schulte, David; Vora, Kushan. Ramping subsystem for a machine with a dual path electronically controlled hydrostatic transmission. USP2017089719586.
  13. Hauser,Raymond. Steering system for a hydraulic drive apparatus. USP2008087406825.
  14. Bell, Douglas W.; Steenburg, Bryce E.. Steering system for a zero-turn radius vehicle. USP2012048152183.
  15. Bell, Douglas W.; Steenburg, Bryce E.. Steering system for a zero-turn radius vehicle. USP2011098011678.
  16. Bell, Douglas W.; Steenburg, Bryce E.. Steering system for a zero-turn radius vehicle. USP2012098262109.
  17. Vora, Kushan; Gulati, Navneet; Schulte, David; Shoemaker, Joseph R.; Tandel, Swapnil. Straight tracking control system for a machine with a dual path electronically controlled hydrostatic transmission. USP2016109470298.