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US 9,957,941 B1Granted
Intermittent restart for automatic engine stop start system
AssigneePACCAR Inc
InventorsMichael D. Gerty, Uday Vadlamani, Jordan Mosher, Sundeep S. Tuteja
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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.
Claims19
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>0.
4 more elements
A method of automatically stopping and restarting a vehicle engine, comprising the steps of:
- (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.
1 more element
Dependencies are inferred from the claim text.