Automatic engine stop and start apparatus
First Claim
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1. An automatic engine stop and start apparatus comprising:
- detection means for detecting operational conditions of a car;
means for setting and resetting an automatic engine stop and start function;
means for detecting necessity for braking the car;
alarm means responsive to a control signal for issuing an alarm;
a control circuit responsive to the output signals from said detection means and said setting and resetting means for producing a control signal to automatically stop or start an engine under a predetermined condition; and
said control circuit producing said control signal to cause said alarm means to issue the alarm when the car starts to move and a car velocity exceeds a predetermined speed and a booster pressure of a brake falls below a predetermined level while the engine has been automatically stopped after the automatic engine stop or start function was set and the car is to be braked.
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Abstract
An automatic engine stop and start apparatus for automatically stopping and starting an engine is disclosed. When a car starts to move while the engine has been automatically stopped and the car is to be braked, and a car velocity exceeds a predetermined speed and a booster pressure of a brake falls below a predetermined level, the apparatus issues an alarm. To this end, the apparatus includes a car velocity sensor for detecting the car velocity, a slope sensor for detecting the necessity of the brake for the car, a negative pressure switch fordetecting the booster pressure of the brake and alarm means responsive to detection outputs of those sensors.
60 Citations
24 Claims
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1. An automatic engine stop and start apparatus comprising:
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detection means for detecting operational conditions of a car; means for setting and resetting an automatic engine stop and start function; means for detecting necessity for braking the car; alarm means responsive to a control signal for issuing an alarm; a control circuit responsive to the output signals from said detection means and said setting and resetting means for producing a control signal to automatically stop or start an engine under a predetermined condition; and said control circuit producing said control signal to cause said alarm means to issue the alarm when the car starts to move and a car velocity exceeds a predetermined speed and a booster pressure of a brake falls below a predetermined level while the engine has been automatically stopped after the automatic engine stop or start function was set and the car is to be braked. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An automatic engine stop and start apparatus comprising:
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detection means for detecting operational conditions of a car; means for setting and resetting an automatic engine stop and start function; means for detecting necessity for braking the car; alarm means responsive to a control signal for issuing an alarm; and a control circuit responsive to the output signal from said detection means and said setting and resetting means for producing a control signal to automatically stop or start an engine under a predetermined condition; said control circuit producing said control signal to cause said alarm means to issue the alarm when the car starts to move and a car velocity exceeds a predetermined speed and a booster pressure of a brake falls below a predetermined level while the engine has been automatically stopped after the automatic engine stop or start function was set and the car is to be braked, and said control signal to automatically start the engine when a transmission is shifted to a neutral position. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification