Circuit for controlling an acceleration, braking and steering system of a vehicle
AssigneeParavan GmbH
InventorsRoland Arnold, Georg Kotrotsios
Life of this patent
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Abstract
A circuit for controlling an acceleration, braking and steering system of a vehicle having at least two separate motors for actuating the acceleration and braking system, at least two separate motors for actuating the steering system and at least one electronic control unit for controlling the motors. The control unit comprises three identical CPUs and one programmable logic component. Each of the CPUs generates control signals for the motors depending on input control signals and sensor signals of the motors and forwards these control signals to the programmable logic component. The programmable logic component, depending on its programming, forwards the control signals of one of the CPUs to the motors.
Claims10
A circuit for controlling acceleration, braking and steering of a vehicle having at least two separate motors for actuating an acceleration and braking system, at least two separate motors for actuating the steering system and at least one electronic control unit for controlling the at least two separate motors for actuating the acceleration and braking system and the at least two separate motors for actuating the steering system, the at least one control unit comprising
- three identical CPUs;
- and
- a programmable logic component;
- wherein each of the three identical CPUs generates control signals for the motors depending on input control signals and on sensor signals of the motors and, forwards the control signals to the programmable logic component;
- and
- wherein the programmable logic component is programmed to forward the control signals of one of the three identical CPUs to the motors.
A method for controlling an acceleration and braking system and, a steering system of a vehicle having at least two separate motors for actuating the acceleration and braking system, at least two separate motors for actuating the steering system, and at least one electronic control unit having three CPUs and one programmable logic component, the method comprising the steps of:
- receiving, in the at least one electronic control unit, input signals from control elements in or on the vehicle for the acceleration and braking system and from position sensors on the motors;
- evaluating the input control signals by each the three CPUs,
- generating by each of the CPUs control signals for the motors on the basis of the input control signals and sensor signals of the motors;
- the logic component comparing the control signals of the CPUs to one another and, depending on the logic component programming, forwarding the control signals of one of the CPUs to the motors.
Dependencies are inferred from the claim text.