Starter control system for automotive vehicle
First Claim
1. A starter control system for starting an engine comprising:
- a starter having a starter motor and an engine engagement member for starting said engine; and
means for rotating said starter motor at a preliminary rotation speed that is lower than a normal operation speed for a preliminary period before rotating said starter motor at said normal operation speed.
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Accused Products
Abstract
A starter control system is comprised of a starter motor, a control circuit for controlling the starter motor to rotate at a preliminary rotation speed that is high enough to engage a pinion with an engine for a predetermined time and low enough to suppress a harsh noise caused when the pinion engages the engine and, thereafter, at a normal rotation speed that is high enough to start the engine, and a control circuit for changing the preliminary rotation speed according to an engine temperature. The starter control system is effective to reduce noises that are caused when the engine is started by an economy-run system.
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Citations
12 Claims
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1. A starter control system for starting an engine comprising:
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a starter having a starter motor and an engine engagement member for starting said engine; and
means for rotating said starter motor at a preliminary rotation speed that is lower than a normal operation speed for a preliminary period before rotating said starter motor at said normal operation speed. - View Dependent Claims (2, 3, 4, 5)
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6. A starter control system for starting an engine comprising:
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a starter having a starter motor and an engine engagement mechanism for rotating said engine; and
means for controlling said starter motor to rotate at a preliminary rotation speed that is low enough to suppress a harsh noise when said engagement mechanism engages said engine for a preliminary period and rotate at a normal operation speed until said engine is started, said preliminary rotation speed being changed according to an engine temperature. - View Dependent Claims (7, 8, 9)
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10. A starter control system for starting an engine comprising:
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a starter having a magnet switch, a starter motor and a pinion;
a control circuit for controlling said starter motor to rotate at a preliminary rotation speed that is high enough to engage said pinion with said engine for a predetermined time and low enough to suppress a harsh noise caused when said pinion engages said engine and at a normal rotation speed that is high enough to start said engine until said engine is started; and
means for changing said preliminary rotation speed according to an engine condition. - View Dependent Claims (11, 12)
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Specification