Automatic stop/ start-up controlling device of an engine
First Claim
1. An automatic stop/start-up controlling device for an engine, having a transmission arranged with an engine mounted on a vehicle through a clutch, said controlling device 1) controlling to automatically stop the engine when an automatic stop condition is satisfied while the engine is driven, 2) controlling to perform a fuel cut when a deceleration condition is satisfied, and 3) controlling to automatically start up the engine when an automatic start-up condition is satisfied while the engine is automatically stopped, comprising a controller;
- wherein the automatic stop condition is satisfied when an idle switch is on, a gear position of said transmission is in neutral, and the vehicle velocity is less than a predetermined velocity;
wherein the deceleration condition is satisfied when the idle switch is on, the vehicle speed is less than a set value and the transmission is in a gear position, the set value being different for each of the gear positions; and
wherein the automatic start-up condition is satisfied when one of the following conditions is satisfied, the conditions being (1) said clutch is changed to a disengaged state from a fully or half engaged state, (2) the gear position of said transmission changes to non-neutral, (3) an idle switch is off, or (4) a condition of booster negative pressure is obtained.
1 Assignment
0 Petitions
Accused Products
Abstract
In a controlling device, the automatic stop and start-up conditions for an internal combustion engine are set to enable automatic stop/start-up control reflecting an operator'"'"'s will or intention without movement of the vehicle feeling incongruous or unresponsive. The controlling device provides an automatic stop condition when all of the following conditions are satisfied (1) vehicle speed is less than a set value other than zero, (2) an idle switch is on, and (3) a gear position of the transmission is in neutral. An automatic start-up condition is satisfied when any one of the following conditions is satisfied, (1) the clutch is changed to a disengaged state from a fully or half engaged state, (2) the gear position of the transmission is in non-neutral, (3) the idle switch is off, or (4) a condition of booster negative pressure.
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Citations
6 Claims
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1. An automatic stop/start-up controlling device for an engine, having a transmission arranged with an engine mounted on a vehicle through a clutch, said controlling device 1) controlling to automatically stop the engine when an automatic stop condition is satisfied while the engine is driven, 2) controlling to perform a fuel cut when a deceleration condition is satisfied, and 3) controlling to automatically start up the engine when an automatic start-up condition is satisfied while the engine is automatically stopped, comprising a controller;
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wherein the automatic stop condition is satisfied when an idle switch is on, a gear position of said transmission is in neutral, and the vehicle velocity is less than a predetermined velocity;
wherein the deceleration condition is satisfied when the idle switch is on, the vehicle speed is less than a set value and the transmission is in a gear position, the set value being different for each of the gear positions; and
wherein the automatic start-up condition is satisfied when one of the following conditions is satisfied, the conditions being (1) said clutch is changed to a disengaged state from a fully or half engaged state, (2) the gear position of said transmission changes to non-neutral, (3) an idle switch is off, or (4) a condition of booster negative pressure is obtained. - View Dependent Claims (2, 3, 4)
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5. A vehicle comprising an internal combustion engine, a transmission connected to an output shaft of the engine through a clutch, a motor generator connected to the output shaft of the engine and disposed between said engine and said clutch, and an automatic stop/start-up controlling device which (1) automatically stops the engine when an automatic stop condition is satisfied while the engine is driven;
- (2) performs a fuel cut when a deceleration condition is satisfied; and
(3) automatically starts up the engine when an automatic start-up condition is satisfied while the engine is automatically stopped,wherein the automatic stop condition is satisfied when (1) an idle switch is on, (2) a gear position of said transmission is in neutral and (3) the vehicle velocity is less than a predetermined velocity;
wherein the deceleration condition is satisfied when (1) the idle switch is on, (2) the vehicle speed is less than a set value and (3) the transmission is in a gear position, the set value being different for each of the gear positions; and
wherein the automatic start-up condition is satisfied when (1) said clutch is changed to a disengaged state from a fully or half engaged state or (2) the gear position of said transmission is shifted to a non-neutral state or (3) the idle switch is off or (4) a predetermined condition of booster negative pressure is obtained.- View Dependent Claims (6)
- (2) performs a fuel cut when a deceleration condition is satisfied; and
Specification