Eco-run control device and engine restart method
First Claim
1. An eco-run control device that sends an engine stop request to an engine control device when predetermined stop requirements are satisfied, causes the engine control device to perform an engine stop control operation, and drives a starter to restart the engine when predetermined restart requirements are satisfied during the engine stop control operation,the eco-run control device comprising:
- a detecting unit that detects a starting operation to start the engine; and
a control unit that causes the starter to restart the engine, when the starting operation is detected during the engine stop control operation and a speed of the engine is lower than a predetermined speed.
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Accused Products
Abstract
An eco-run control device sends an engine stop request to an engine control device when predetermined stop requirements are satisfied, causes the engine control device to perform an engine stop control operation, and drives a starter to restart the engine when predetermined restart requirements are satisfied during the engine stop control operation. This eco-run control device includes: a detecting unit that detects a starting operation to start the engine; and a control unit that causes the starter to restart the engine, if the starting operation is detected during the engine stop control operation and the engine speed is lower than a predetermined speed.
28 Citations
9 Claims
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1. An eco-run control device that sends an engine stop request to an engine control device when predetermined stop requirements are satisfied, causes the engine control device to perform an engine stop control operation, and drives a starter to restart the engine when predetermined restart requirements are satisfied during the engine stop control operation,
the eco-run control device comprising: -
a detecting unit that detects a starting operation to start the engine; and a control unit that causes the starter to restart the engine, when the starting operation is detected during the engine stop control operation and a speed of the engine is lower than a predetermined speed. - View Dependent Claims (2, 3, 4)
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5. An eco-run control device that is mounted on a vehicle and is capable of performing an eco-run control operation to stop an engine when predetermined stop requirements are satisfied and later restart the engine when predetermined restart requirements are satisfied,
the eco-run control device comprising: -
a starter drive request transmitting unit that transmits a starter drive allowing request signal to an engine control device, when the predetermined start requirements are satisfied while the engine is being shifted to a stopped state through the eco-run control operation; and a starter drive control unit that drives a starter, when receiving a starter drive allowing signal from the engine control device after the starter drive request transmitting unit transmits the starter drive allowing result signal to the engine control device, the starter drive control unit driving the starter when there is not the starter drive allowing signal transmitted from the engine control device even after a predetermined period of time passes since the starter drive request transmitting unit transmits the starter drive slowing request signal.
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6. An eco-run control device that is mounted on a vehicle and is capable of performing an eco-run control operation to stop an engine when predetermined stop requirements are satisfied and later restart the engine when predetermined restart requirements are satisfied,
the eco-run control device comprising: -
a starter drive request transmitting unit that transmits a starter drive allowing request signal to an engine control device, when the predetermined start requirements are satisfied while the engine is being shifted to a stopped state through the eco-run control operation; and a starter drive control unit that drives a starter, when receiving a starter drive allowing signal from the engine control device after the starter drive request transmitting unit transmits the starter drive allowing result signal to the engine control device, the starter drive control unit driving the starter when abnormal data is received a predetermined number of times or more often between the time when the starter drive request transmitting unit transmits the starter drive allowing request signal and the time when the starter drive allowing signal is received from the engine control device.
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7. An eco-run control device that is mounted on a vehicle and is capable of performing an eco-run control operation to stop an engine when predetermined stop requirements are satisfied and later restart the engine when predetermined restart requirements are satisfied,
the eco-run control device comprising: -
a starter drive request transmitting unit that transmits a starter drive allowing request signal to an engine control device, when the predetermined start requirements are satisfied while the engine is being shifted to a stopped state through the eco-run control operation; and a starter drive control unit that drives a starter, when receiving a starter drive allowing signal from the engine control device after the starter drive request transmitting unit transmits the starter drive allowing result signal to the engine control device, the starter drive control unit driving the starter when detecting a decrease of the engine speed to a predetermined speed or lower between the time when the starter drive request transmitting unit transmits the starter drive allowing request signal and the time when the starter drive allowing signal is received from the engine control device.
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8. An eco-run control device that is mounted on a vehicle and is capable of performing an eco-run control operation to stop an engine when predetermined stop requirements are satisfied and later restart the engine when predetermined restart requirements are satisfied,
the eco-run control device comprising: -
a starter drive control unit that transmits a starter drive allowing request signal to an engine control device when the predetermined start requirements are satisfied, and drives a starter when receiving a starter drive allowing signal from the engine control device after transmitting the starter drive allowing request signal, the starter drive control unit driving the starter even when the starter drive allowing signal is not received from the engine control device, where there is at least failure in the engine control device or an error in a communication with the engine control device.
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9. An engine restart method comprising the steps of:
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performing an idling stop by sending an engine fuel supply cut request to an engine control device, when predetermined stop requirements are satisfied; detecting a starting operation to start the engine, after the fuel supply is cut; and causing a starter to restart the engine, when the starting operation is detected and a speed of the engine becomes lower than a predetermined speed.
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Specification