Vehicle fast torque coordination
First Claim
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1. A method for use in an automotive vehicle having an engine and at least one motor, the method comprising:
- receiving an engine base torque level indicating slowly changing torque produced by the engine;
receiving a request for fast desired torque;
determining as a motor torque a difference between the fast desired torque and the engine base torque level;
determining as an engine fast torque a difference between the request for fast desired torque and the motor torque;
determining a motor torque request as the motor torque; and
determining an engine torque request as the engine fast torque.
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Abstract
Rapidly changing torque demand is coordinated in an automotive vehicle having an engine and at least one motor. An engine base torque level indicating slowly changing torque produced by the engine is received. A motor torque is determined as a difference between a fast desired torque and the engine base torque level. An engine fast torque is determined as a difference between the request for fast desired torque and the motor torque. The motor torque is determined as a motor torque request and the engine fast torque is determined as an engine torque request.
65 Citations
20 Claims
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1. A method for use in an automotive vehicle having an engine and at least one motor, the method comprising:
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receiving an engine base torque level indicating slowly changing torque produced by the engine;
receiving a request for fast desired torque;
determining as a motor torque a difference between the fast desired torque and the engine base torque level;
determining as an engine fast torque a difference between the request for fast desired torque and the motor torque;
determining a motor torque request as the motor torque; and
determining an engine torque request as the engine fast torque. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A vehicle comprising:
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an engine supplying engine torque to drive the vehicle, the engine torque based on an engine torque request;
at least one motor supplying motor torque to drive the vehicle, the motor torque based on a motor torque request;
a plurality of torque requesting sources; and
control logic in communication with the engine, the at least one motor and the plurality of torque requesting sources, the control logic operative to (a) receive an engine base torque level indicating slowly changing torque produced by the engine, (b) receive a request for fast desired torque, (c) determine as a motor torque a difference between the fast desired torque and the engine base torque level, this difference limited by at least one motor torque availability limitation, (d) determine as an engine fast torque a difference between the request for fast desired torque and the motor torque, (e) determine as the motor torque request the motor torque, and (f) determine as the engine torque request the engine fast torque. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for controlling a motor vehicle having a plurality of torque producing sources for propelling the vehicle, the method comprising:
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receiving a base torque level indicating slowly changing torque produced by a first propelling torque source;
receiving a request for fast desired torque;
determining a second propelling source torque request based on a difference between the fast desired torque and the base torque level, this difference limited by at least one second propelling torque source availability limitation;
determining a first propelling source torque request based on a difference between the request for fast desired torque and the second propelling torque source request; and
providing the first propelling source torque request and the second propelling torque source request to the plurality of torque producing sources, whereby the motor vehicle is controlled.
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Specification