Method for controlling the power supply to a vehicle engine
AssigneeDelphi Technologies, Inc.
InventorsBart Hubert Schreurs, Michel Henri Peters
Life of this patent
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Abstract
A method for controlling a power supply for a vehicle engine utilizes two sensors monitoring a power supply control member. In the event of a disturbance of the one of the sensor signals, the other sensor signal is used for determining the actuator control signals. If such other sensor signal exceeds a limit value, the actuator control signals are determined by a proportional-plus integral control, with the integral portion of the control being based on an operating state of the vehicle when the limit value is exceeded.
Claims18
A method for controlling the power supply to a vehicle engine, wherein control signals are delivered to an actuator to control the power supply to the vehicle engine based on signals produced by at least two sensors that monitor a control member to indicate a desired change of vehicle operating state, the method comprising the steps of:
- detecting a first event in which a signal produced by one of the sensors is disturbed and a signal produced by the other sensor is undisturbed;
- determining the control signals for said actuator based on the undisturbed signal when said first event is detected;
- detecting a second event in which the desired change of vehicle operating state indicated by said undisturbed signal exceeds a limit value associated with a current vehicle operating state;
- and
- determining the control signals for said actuator based on a proportional-plus integral control when said second event is detected, said proportional-plus integral control including an integral portion having a starting value equal to an initial value allocated to a vehicle operating state in effect when the second event is detected.
A device for controlling the power supply to a vehicle engine having at least two sensors (S1, S2, S3, S4) monitoring a control member, evaluating means comparing the current operating state of the vehicle with a desired operating state in dependence on the signals of the sensors (S1, S2, S3, S4), and control means (1) providing controlling signals (Xn) to an actuator (5) in dependence on the result of the comparison performed by the evaluating means, which actuator controls the power supplied to the vehicle engine, characterized in that there are provided a memory (4a), in which initial values (R(rpm,g)) are stored in dependence on determined operating states of the vehicle, and a calculating unit (3), which determines the control signals (Xn) for the actuator (5) by a proportional-plus integral control unit when in the event of a disturbance of the signal of one of the sensors (S1, S2, S3, S4) the desired operating state is above a limit value (P(g)), wherein the calculating unit (3) determines the starting value (iT0) of the proportional-plus integral control equal to the initial value (R(rpm,g), P(g)) which is allocated to the respective current operating state.
Dependencies are inferred from the claim text.