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Automatic stop/start-up control apparatus of an engine

  • US 6,540,644 B2
  • Filed: 08/30/2001
  • Issued: 04/01/2003
  • Est. Priority Date: 09/05/2000
  • Status: Expired due to Term
First Claim
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1. An automatic stop/start-up control apparatus for a vehicle including an internal combustion engine which automatically stops the engine when an automatic stop condition is satisfied while the engine is driven, and which automatically starts the engine when an automatic start-up condition is satisfied while the engine is stopped, comprising:

  • a power assist detector for detecting a power assist of an underpressure assist type brake apparatus equipped in the vehicle; and

    a controller for controlling so as to automatically start the engine when a decrease rate per unit time of power assist, which said power assist detector detects while said engine is automatically stopped, exceeds a first set value,wherein said controller,.while the engine is automatically stopped, controls the engine to automatically start when a decrease rate per unit time of power assist, which said power assist detector detects, is a value less than said first set value, but more than a second set value that is set below the first set value, when counted more than a set number of times.

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