An engine automatic start stop control apparatus controls an engine of a vehicle to be automatically stopped or started in response to driving conditions of a vehicle. Particularly, the apparatus is applied to the vehicle that performs idle stop control for reduction of discharge gas. Herein, the apparatus controls the engine to restart based upon determination for restarting the engine under an engine stop mode. Namely, the apparatus controls the engine to restart if a driver depresses a clutch pedal or if a driver does not depress a brake pedal during an engine stall in which engine speed becomes zero. Thus, it is possible to restart the engine by prescribed operations even if the driver mistakenly recognizes that the engine is stopped by automatic stop control although the engine actually stalls due to an error operation of the driver so that the engine speed becomes zero. This improves drivability for the driver who handles the vehicle, particularly a hybrid vehicle which is capable of independently running by using an electric motor only.

Engine automatic start stop control apparatus

A system is installed in a vehicle having an internal combustion engine, a transmission, and a clutch. The system restarts, according to at least one engine restart condition is met, the internal combustion engine that has been automatically controlled for stop thereof. The system includes a restart-condition determiner configured to determine that, as the at least one engine restart condition, an operation of the clutch is started by a driver of the vehicle for shifting the second state to the first state. The system includes a state detector configured to detect an operated state of the clutch during the clutch is shifted from a disengagement state to an engagement state. The system includes a restart controller configured to determine whether to enable or disable the restart of the internal combustion engine according to the operated state of the clutch detected by the state detector.

System for restarting internal combustion engine when engine restart condition is met

A control device for a hybrid vehicle having an engine and a motor as driving sources for the vehicle, and when decelerating, the control device stops the fuel supply to the engine and generates energy by regenerative braking. The engine is a cylinder pause-type engine which is capable of switching between the all-cylinder driving state in which all of cylinders are operating, and a cylinder paused driving state in which all of the cylinders are paused, and the control device of the hybrid vehicle comprises a cylinder pause state determination device for determining whether the engine is in the all cylinder driving state or in a cylinder paused driving state and a regeneration amount supplementing device for supplementing the regeneration energy by the motor by use of the increment of the regeneration energy obtained during the cylinder pausing operation than that obtained during all cylinder driving state.

Controller of hybrid vehicle

A hybrid electric vehicle is arranged such that a driving force of an electric motor can be transmitted to driving wheels and that a rotary shaft of the electric motor can be coupled with an output shaft of an engine. The vehicle comprises a starter motor provided separately from the electric motor, an electric power source provided separately from a battery that supplies power to the electric motor, to supply power to the starter motor, and a braking force maintaining device configured to be activated by power from the power source to maintain a braking force on the vehicle. When a request for starting the engine is made, if a specified abnormal condition which makes the starting of the engine by the electric motor impracticable is detected, an ECU causes the engine to be started by the starter motor when the braking force maintaining device is not active.

Control device for a hybrid electric vehicle

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.

Automatic stop/ start-up controlling device of an engine

PROBLEM TO BE SOLVED: To provide an engine control device for controlling automatic stop and restart of an engine of a vehicle for reducing fuel consumption which provides an excellent driving feeling and avoids wasteful fuel consumption by suppressing frequent repetition of stop and restart of the engine wastefully. SOLUTION: When the vehicle is in a decelerating state, fuel cut is executed to avoid wasting fuel while the rotation of the engine 1 is maintained by coupling a crankshaft 2 with an axle 11 by a lockup clutch 16 and the like. When a brake stepping amount thereafter is equal to or larger than a first predetermined value S1, it is estimated that the driver intends to stop the vehicle and a quick stop process of the engine rotation is executed except for the case of heavy braking. When the brake stepping amount during this process or after rotation stop decreases to equal to or smaller than a second predetermined value S2, it is estimated that the driver has intention for reacceleration of the vehicle, and fuel supply is resumed, a starter 7 is actuated and the engine 1 is rotated equal to or faster than a predetermined engine speed. COPYRIGHT: (C)2009,JPO&INPIT

Engine control device

An engine automatic speed control apparatus which exhibits a smooth transition from brake release to an engine drive state An ECU determines braking force such that a vehicle does not move in correspondence with the slope of a road surface according to a road surface slope sensor while monitoring an operated quantity of a brake pedal according to a brake pedal operated-quantity sensor The ECU stops an engine when braking force is applied via the brake pedal such that the vehicle does not move After stopping the engine, the ECU determines braking force such that the vehicle does not move in correspondence with slope of the road surface according to the road surface slope sensor, and restarts the engine when braking force becomes less than braking force required to maintain the vehicle in a stopped state The ECU then restarts the engine in the interval from relaxing of braking force via the brake pedal until the brake pedal is released

Apparatus and method for automatically starting and stopping a vehicle engine to effect a smooth change from a vehicle brake release state to a vehicle drive state

The arrangement has an engine controller (10) for restarting the engine (1) from its off state in combination with the actuation of a brake actuation part during a time interval from reducing the braking force with the brake actuation part until releasing the brake actuation part. The controller restarts the engine when the braking force is lower than a defined value.

Arrangement for automatically starting and stopping a motor vehicle engine to effect a smooth transition from a braked state to a drive state

PROBLEM TO BE SOLVED: To provide a method of manufacturing a battery conducting proper welding by preventing a flow of current to a portion where welding is not intended in resistance-welding, and to provide the battery manufactured by the method. SOLUTION: The method of manufacturing the battery 1, which has a power generating element 10 having an electrode plate 21 including a metal foil 22 having an exposure part 24 exposing the exposure part and a current collecting member 40 formed by forming a welding part M2 by welding to the exposure part, and includes a resistant-welding process in which a current collecting welding intended part 41M of the current collecting member is closely contacted with an exposure welding intended part 25M of the exposure part, an insulating member 60 is interposed into a gap between a current collecting non-welding part 42 of the current collecting member and an exposure non-welding part 26 of the exposure part, and the current collecting intended part and the exposure welding intended part are resistance-welded to form a welded part. COPYRIGHT: (C)2010,JPO&INPIT

Battery and method of manufacturing the same

PROBLEM TO BE SOLVED: To provide an automatic stop and starting device for an engine in a vehicle, that can shift from brake release more smoothly into an engine driving state. SOLUTION: An ECU 10 determines braking force just enough to impede the movement of a vehicle according to the inclination of the road surface based on a road surface inclination sensor 16, stops an engine 1 when braking force just enough to impede the movement of the vehicle by the operation of a brake pedal is applied, while monitoring the operating quantity of the brake pedal based on a brake pedal operating quantity sensor 15, determines braking force just enough to impede the movement of the vehicle according to the inclination of the road surface based on the road surface inclination sensor 16 after the stop of the engine 1, and restarts the engine when braking force becomes smaller than the braking force just enough to impede the movement of the vehicle. In this case, the ECU 10 restarts the engine 1 between the time of relaxation of braking force by the brake pedal and the time of release of the brake pedal.

Takahiro Soki

Papers

Engine control device

Apparatus and method for automatically starting and stopping a vehicle engine to effect a smooth change from a vehicle brake release state to a vehicle drive state

Arrangement for automatically starting and stopping a motor vehicle engine to effect a smooth transition from a braked state to a drive state

Battery and method of manufacturing the same

Engine automatic stop and starting device in vehicle