Automatic vehicle stop control method
AssigneeValeo Equipements Electriques Moteur
InventorsBrice Lecole, Magali Laurence
Life of this patent
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Abstract
A stop control method which is intended for a heat engine of a vehicle that is equipped with a reversible electric machine. According to the invention, a decision is made to stop the heat engine as a function of: (i) steady conditions which are essentially stable prior to a stopping phase; and (ii) variable conditions which can change following a positive test on the steady conditions and prior to a stopping phase, said steady conditions being tested prior to the variable conditions. The invention is suitable for motor vehicles.
Claims17
A control method for controlling a stopping of a thermal engine of a motor vehicle, wherein said method comprises the steps of:
- deciding on an automatic stopping of said thermal engine according on the one hand to steady conditions, substantially stable before a stop phase, and on the other hand variable conditions liable to change after a positive test on said steady conditions and before said stop phase;
- testing said steady conditions prior to said variable conditions;
- and
- sending a warning signal intended to inform of a probable stopping of the thermal engine after said positive test on said steady conditions.
A control method for controlling the stopping of a thermal engine of a motor vehicle, wherein said method comprises the steps of:
- deciding on an automatic stopping of said thermal engine according on the one hand to steady conditions, substantially stable before a stop phase, and on the other hand variable conditions liable to change after a positive test on said steady conditions and before said stop phase;
- testing said steady conditions prior to said variable conditions;
- and
- testing said steady conditions, prior to a test on the variable conditions, after sending a warning signal.
A control method for controlling the stopping of a thermal engine of a motor vehicle, wherein said method comprises the steps of:
- deciding on an automatic stopping of said thermal engine according on the one hand to steady conditions, substantially stable before a stop phase, and on the other hand variable conditions liable to change after a positive test on said steady conditions and before said stop phase;
- and
- testing said steady conditions prior to said variable conditions;
- wherein the steady conditions comprise, separately or in combination, so-called behavioral conditions relating to an action of the driver of the vehicle and safety conditions relating to the functioning of the vehicle;
- wherein said behavioral conditions comprise, separately or in combination, an action on a means of activating/deactivating the thermal engine stop control, a closure of the driver's door of the vehicle, a detection of the presence of the driver in the vehicle if the door of said driver has been opened, a closure of the bonnet of the vehicle, a speed of the vehicle lower than a given speed, a gear lever in a neutral position and the clutch pedal released, a minimum speed reached on the vehicle since the previous stopping, and, if the vehicle is equipped with an activated air conditioning device, a temperature of the vehicle lying within a given temperature range;
- wherein said detection of the driver in the vehicle is validated if at least one of the following conditions is fulfilled:
- a safety belt of the driver is fastened,
- an ignition key is actuated in the starting position, and
- the following sequence is performed:
- a clutch pedal is completely pressed down, a gear lever is engaged in a non-neutral position and said clutch pedal is released.
A control method for controlling the stopping of a thermal engine of a motor vehicle, wherein said method comprises the steps of:
- deciding on an automatic stopping of said thermal engine according on the one hand to steady conditions, substantially stable before a stop phase, and on the other hand variable conditions liable to change after a positive test on said steady conditions and before said stop phase;
- and
- testing said steady conditions prior to said variable conditions;
- wherein the steady conditions comprise, separately or in combination, so-called behavioral conditions relating to an action of the driver of the vehicle and safety conditions relating to the functioning of the vehicle;
- wherein said safety conditions comprise, separately or in combination, a temperature of the electronics of a rotary electrical machine coupled to said thermal engine below a given temperature, a speed of the thermal engine less than a given speed, the absence of or the prevention of a restarting instruction, and an expiry of a given time after a failure to stop the thermal engine.
A control method for controlling the stopping of a thermal engine of a motor vehicle, wherein said method comprises the steps of:
- deciding on an automatic stopping of said thermal engine according on the one hand to steady conditions, substantially stable before a stop phase, and on the other hand variable conditions liable to change after a positive test on said steady conditions and before said stop phase;
- testing said steady conditions prior to said variable conditions;
- and
- opening a window for monitoring the speed of the thermal engine with a given duration following an instruction to stop said thermal engine.
A device for controlling the stopping of a thermal engine of a motor vehicle, wherein said device comprises:
- means for deciding on the automatic stopping of said thermal engine according on one hand to steady conditions, substantially stable before a stop phase, and on the other hand variable conditions liable to change after a positive test on the steady conditions and before said stop phase;
- means for testing said steady conditions prior to the variable conditions;
- and
- means for sending a warning signal intended to inform of a probable stopping of the thermal engine, after a positive test on said steady conditions.
A device for controlling the stopping of a thermal engine of a motor vehicle, wherein said device comprises:
- means for deciding on an automatic stopping of said thermal engine according on the one hand to steady conditions, substantially stable before a stop phase, and on the other hand variable conditions liable to change after a positive test on said steady conditions and before said stop phase;
- means for testing said steady conditions prior to said variable conditions;
- and
- means for testing said steady conditions, prior to a test on the variable conditions, after sending a warning signal.
Dependencies are inferred from the claim text.