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Electronic tractor control

  • US 4,715,012 A
  • Filed: 10/15/1980
  • Issued: 12/22/1987
  • Est. Priority Date: 10/15/1980
  • Status: Expired due to Term
First Claim
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1. A unified control system in combination with a tractor having a cab, an engine, and a plurality of controlled subsystems including a rear-mounted implement hitch;

  • said unified control system includinga principal control unit having a principal microprocessor associated with the cab of said tractorfirst and second subservient control units each having operating condition sensors and a subservient microprocessor, said first subservient control unit being associated with the engine of said tractor, and said second subservient control unit being associated with the rear-mounted implement hitch of said tractor, and each of said control units controlling at least one associated subsystem in response to sensed operating conditions;

    communication link means connecting said control units to each other and capable of transmitting data descriptive of said sensed operating conditions from the subservient control units to said principal control unit;

    data requesting means associated with one of said subservient control units for requesting from said principal control unit data descriptive of an operating condition of a subsystem associated with the other of said subservient control units; and

    operating means associated with said one subservient control unit for generating control signals to an associated subsystem in response to said requested data.

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