Assisted direct start engine control for enhanced launch performance
First Claim
1. A method for controlling a vehicle with internal combustion engine having automatic restart and automatic shut down, the method comprising:
- anticipating vehicle launch in response to vehicle position relative to a traffic stream by detecting movement of a forward vehicle across a detector field of view;
controlling the automatic restart in response to detecting an anticipated vehicle launch; and
controlling the automatic shut down in response to detecting no anticipated vehicle launch.
1 Assignment
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Accused Products
Abstract
A system and method for controlling an internal combustion engine include anticipating vehicle launch in response to vehicle position relative to a traffic stream and controlling automatic restart and shut down in response to an anticipated vehicle launch to prevent an automatic engine shut down or to initiate an automatic engine restart. Embodiments include determining vehicle position and traffic position using GPS coordinates. Automatic restart may be initiated in response to movement of a forward vehicle away from the vehicle or in response to a signal from a traffic control device, for example. Automatic shutdown may be inhibited in response to movement of a forward vehicle in cross traffic, in response to a turn indicator being active, or in response to wheel angle, for example.
38 Citations
17 Claims
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1. A method for controlling a vehicle with internal combustion engine having automatic restart and automatic shut down, the method comprising:
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anticipating vehicle launch in response to vehicle position relative to a traffic stream by detecting movement of a forward vehicle across a detector field of view; controlling the automatic restart in response to detecting an anticipated vehicle launch; and controlling the automatic shut down in response to detecting no anticipated vehicle launch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for controlling an internal combustion engine having automatic restart and automatic shut down, comprising:
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anticipating vehicle launch in response to vehicle position relative to a traffic stream by detecting movement of a forward vehicle by processing a directed energy beam signal reflected from the forward vehicle; controlling the automatic restart in response to detecting an anticipated vehicle launch; and controlling the automatic shut down in response to detecting no anticipated vehicle launch.
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10. A system for controlling an internal combustion engine of a vehicle comprising:
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at least one sensor that provides a signal indicative of vehicle position relative to a traffic stream and detects movement of a forward vehicle; a controller in communication with the at least one sensor, the controller anticipating vehicle launch in response to the vehicle position relative to the traffic stream when movement of the forward vehicle exceeds a corresponding threshold and controlling automatic restart and shut down of the engine based on a determination of whether or not a vehicle launch is anticipated. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method for controlling an internal combustion engine having automatic restart and automatic shut down, comprising:
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anticipating vehicle launch in response to vehicle position relative to a traffic stream; controlling the automatic restart in response to detecting an anticipated vehicle launch; and controlling the automatic shut down in response to detecting no anticipated vehicle launch, wherein controlling the automatic shut down comprises preventing an automatic engine shut down to maintain engine operation.
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Specification