Motor assistance for a hybrid vehicle
First Claim
1. A method of providing assistance to an internal combustion engine for a vehicle using an electric motor coupled to the engine, the method comprising:
- selectively operating the motor to provide assistance to the engine at predetermined operating conditions of the engine;
wherein the electric motor is coupled to a crankshaft of the engine at a first side of the engine and a transmission is coupled to the crankshaft at a second side of the engine opposite the first side of the engine; and
wherein during at least a portion of the selective operation, the motor is operated at a higher torque than a continuous operating torque rating for the motor, wherein operating the motor at a higher torque than a continuous operating torque rating for the motor allows the motor to provide a same level of assistance to the engine as if a larger motor were used to provide assistance to the engine.
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Accused Products
Abstract
A method of providing assistance to an internal combustion engine for a vehicle using an electric motor coupled to the engine is provided. The method comprises selectively operating the motor to provide assistance to the engine at predetermined operating conditions of the engine. During at least a portion of the selective operation, the motor is operated at a higher torque than a continuous operating torque rating for the motor. The electric motor is coupled to a crankshaft of the engine at a first side of the engine and a transmission is coupled to the crankshaft at a second side of the engine opposite the first side of the engine.
296 Citations
30 Claims
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1. A method of providing assistance to an internal combustion engine for a vehicle using an electric motor coupled to the engine, the method comprising:
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selectively operating the motor to provide assistance to the engine at predetermined operating conditions of the engine; wherein the electric motor is coupled to a crankshaft of the engine at a first side of the engine and a transmission is coupled to the crankshaft at a second side of the engine opposite the first side of the engine; and wherein during at least a portion of the selective operation, the motor is operated at a higher torque than a continuous operating torque rating for the motor, wherein operating the motor at a higher torque than a continuous operating torque rating for the motor allows the motor to provide a same level of assistance to the engine as if a larger motor were used to provide assistance to the engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A motor controller, comprising:
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one or more processors configured to execute instructions stored on one or more computer-readable media, wherein the instructions are executable by the one or more processors to selectively operate an electric motor to provide assistance to an internal combustion engine at predetermined operating conditions of the engine; wherein the electric motor is coupled to a crankshaft of the engine at a first side of the engine and a transmission is coupled to the crankshaft at a second side of the engine opposite the first side of the engine; and wherein during at least a portion of the selective operation, the motor is operated at a higher torque than a continuous operating torque rating for the motor, wherein operating the motor at a higher torque than a continuous operating torque rating for the motor allows the motor to provide a same level of assistance to the engine as if a larger motor were used to provide assistance to the engine. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A hybrid drive system for a vehicle, comprising:
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an electric motor configured to provide assistance to an internal combustion engine to provide motive power for the vehicle; and a controller configured to control operation of an electric motor, wherein the controller comprises one or more processors configured to execute instructions stored on one or more computer-readable media, wherein the instructions are executable by the one or more processors to selectively operate the electric motor to provide assistance to the internal combustion engine at predetermined operating conditions of the engine; wherein the electric motor is coupled to a crankshaft of the engine at a first side of the engine and a transmission is coupled to the crankshaft at a second side of the engine opposite the first side of the engine; and wherein during at least a portion of the selective operation, the motor is operated at a higher torque than a continuous operating torque rating for the motor, wherein operating the motor at a higher torque than a continuous operating torque rating for the motor allows the motor to provide a same level of assistance to the engine as if a larger motor were used to provide assistance to the engine. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification