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Intermittent restart for automatic engine stop start system

  • US 10,451,022 B2
  • Filed: 04/04/2018
  • Issued: 10/22/2019
  • Est. Priority Date: 11/02/2016
  • Status: Active Grant
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; and

    (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 programmed to;

    (i) determine if a stop/start enablement condition has been met;

    (ii) initiate an engine shutdown;

    (iii) initiating a first intermittent engine restart process in response to the restart request when engine speed is greater than the predetermined threshold speed; and

    (iv) initiate a second intermittent engine restart process in response to the restart request when engine speed is greater than 0 and less than the predetermined threshold speed.

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