Engine starting device and vehicle incorporating the same
First Claim
1. A device for starting an engine, comprising:
- a starter for starting said engine; and
a control device for controlling said starter,said starter includinga second gear that can be engaged with a first gear coupled to a crankshaft of said engine,an actuator for moving said second gear to an engagement position with said first gear in a driven state, anda motor for rotating said second gear,said control device being capable of individually controlling each of said actuator and said motor,said control device carrying out control by using a first mode in which said motor is driven prior to drive of said actuator and a second mode in which said actuator engages said second gear and said first gear with each other prior to drive of said motor, andsaid control device switching selection between said first mode and said second mode based on a reduction rate in rotation speed of said engine, when a request for starting said engine based on an operation by an operator,wherein said control device switches selection between said first mode and said second mode based on a rotation speed of said engine and the reduction rate in rotation speed of said engine, when the request for starting said engine based on the operation by the operator, andwherein said control device selects said first mode when a magnitude of said reduction rate is smaller than a threshold value while the rotation speed of said engine is intermediate between a first reference value and a second reference value greater than said first reference value.
1 Assignment
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Accused Products
Abstract
A device for starting an engine includes a starter for starting the engine and an ECU. The starter includes a pinion gear for engagement with a ring gear for cranking the engine, an actuator structured to engage the pinion gear with a ring gear, and a motor for rotating the pinion gear. The actuator and the motor can individually be controlled. The ECU has a rotation mode for driving the motor prior to drive of the actuator and an engagement mode for causing the actuator to engage the pinion gear and the ring gear with each other prior to drive of the motor. When a request to start the engine is made, the ECU switches selection between the rotation mode and the engagement mode based on a rotation speed of the engine and a reduction rate in rotation speed of the engine.
10 Citations
12 Claims
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1. A device for starting an engine, comprising:
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a starter for starting said engine; and a control device for controlling said starter, said starter including a second gear that can be engaged with a first gear coupled to a crankshaft of said engine, an actuator for moving said second gear to an engagement position with said first gear in a driven state, and a motor for rotating said second gear, said control device being capable of individually controlling each of said actuator and said motor, said control device carrying out control by using a first mode in which said motor is driven prior to drive of said actuator and a second mode in which said actuator engages said second gear and said first gear with each other prior to drive of said motor, and said control device switching selection between said first mode and said second mode based on a reduction rate in rotation speed of said engine, when a request for starting said engine based on an operation by an operator, wherein said control device switches selection between said first mode and said second mode based on a rotation speed of said engine and the reduction rate in rotation speed of said engine, when the request for starting said engine based on the operation by the operator, and wherein said control device selects said first mode when a magnitude of said reduction rate is smaller than a threshold value while the rotation speed of said engine is intermediate between a first reference value and a second reference value greater than said first reference value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device for starting an engine, comprising:
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a starter for starting said engine; and a control device for controlling said starter, said starter including a second gear that can be engaged with a first gear coupled to a crankshaft of said engine, an actuator for moving said second gear to an engagement position with said first gear in a driven state, and a motor for rotating said second gear, said control device being capable of individually controlling each of said actuator and said motor, said control device carrying out control by using a first mode in which said motor is driven prior to drive of said actuator and a second mode in which said actuator engages said second gear and said first gear with each other prior to drive of said motor, and said control device switching selection between said first mode and said second mode based on a reduction rate in rotation speed of said engine, wherein when a magnitude of a reduction rate in rotation speed of said engine is a first value which is larger than a second value, said control device selects said first mode when a request for starting said engine based on an operation by an operator is provided. - View Dependent Claims (12)
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Specification