Intermittent restart for automatic engine stop start system
First Claim
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1. A stop/restart system for a vehicle, comprising:
- (a) a vehicle having an engine;
(b) an engine speed sensor configured to sense engine speed;
(c) a controller configured to receive signals from the engine speed sensor and to control delivery of fuel to the engine, wherein the controller is programed to;
(i) determine if a stop/start enablement condition has been met;
(ii) initiate an engine shutdown; and
(iii) initiate an intermittent engine restart in response to a restart request made when engine speed>
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Abstract
A disclosed method of automatically stopping and restarting a vehicle engine determines if one or more stop/start enablement condition has been met. If the stop/start enablement condition or conditions have been met, the method initiates an engine shutdown. If a restart request is made before the engine comes to a complete stop, an intermittent engine restart is initiated.
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Citations
19 Claims
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1. A stop/restart system for a vehicle, comprising:
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(a) a vehicle having an engine; (b) an engine speed sensor configured to sense engine speed; (c) a controller configured to receive signals from the engine speed sensor and to control delivery of fuel to the engine, wherein the controller is programed to; (i) determine if a stop/start enablement condition has been met; (ii) initiate an engine shutdown; and (iii) initiate an intermittent engine restart in response to a restart request made when engine speed>
0. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of automatically stopping and restarting a vehicle engine, comprising the steps of:
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(a) determining if a stop/start enablement condition has been met; (b) initiating an engine shutdown; and (c) initiating an intermittent engine restart in response to a restart request made when engine speed>
0. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification