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Automatic countersteering system for motor vehicles

  • US 5,276,620 A
  • Filed: 03/25/1991
  • Issued: 01/04/1994
  • Est. Priority Date: 03/25/1991
  • Status: Expired due to Fees
First Claim
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1. An automatic countersteering system for providing corrective movement of a road vehicle having a pair of steerable wheels and steering linkage associated therewith, in response to changes in the texture of a road, comprisingat least one vehicle speed sensor sensitive to the speed of the steerable wheels for producing a first input signal in response to sudden deviations in wheel speed from reference values,at least one wheel position detecting sensor for detecting the lateral wheel movement of the steerable wheels and to produce a second input signal in response to lateral wheel movements, such as movements being indicative of skid movement and/or changes in the texture of the road surface,at least one steering wheel position detecting sensor for sensing the rotational motion of the steering wheel and to produce a third input signal indicative of movement thereof,at least one force producing mechanism for actuating the steerable wheels in accordance with a control signal applied to said mechanism, anda control system connected to said vehicle wheel speed sensor, said wheel position detecting sensor, said steering wheel detection sensor, and said force producing mechanism, said control system being adapted to receive said input signals, to differentiate time lags between occurrances of repetitive signals of at least one of said signals, to produce said control signal in accordance therewith as a corrective routine, and to impress the same on said force producing mechanism thereby actuating the steerable wheels as a corrective turning movement.

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