Method for actuating the stop and start function in a moving vehicle, especially an industrial or commercial or special vehicle
First Claim
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1. A method for actuating the stop &
- start function in a moving vehicle, especially an industrial or commercial or special vehicle, the method comprising;
preparing a vehicle equipped with hybrid drive of the parallel type, comprising a thermal engine, an electric motor-generator, a single clutch unit placed between the two engines, an automated manual transmission, and a hybrid power steering both hydraulic and electric;
enabling of a stop phase, in which the motor-generator assumes the management of the speed of rotation of a primary of the gearbox;
activation of the stop phase;
maintaining of the stop phase; and
activation of the start phase;
wherein said enabling step of the stop phase comprises the following verifications;
released accelerator pedal or gear shifting request by the automated manual transmission;
vehicle speed higher than a first threshold value (Vs);
road slope comprised between two limit values (P1, P2);
activation of a control system (EPS) of the electric power steering;
verification that the charging status of a drive battery of the electric motor is higher than a threshold value (SOCD);
verification of the opening status of the clutch;
verification of engagement of the forward gear;
said enabling of the stop phase being performed only if all the conditions mentioned above are verified.
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Abstract
The present invention relates to a method for actuating the stop & start function in a moving vehicle, especially an industrial or commercial or special vehicle, said vehicle being equipped with hybrid drive of the parallel type, comprising a thermal engine (1), an electric motor-generator (2), a single clutch unit (3) placed between the two engines, a transmission system (6) comprising an automated manual transmission, a hybrid power steering both hydraulic and electric, the method comprising the steps of enabling of the stop phase, activation of the stop phase, maintaining of the stop phase, activation of the start phase.
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Citations
6 Claims
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1. A method for actuating the stop &
- start function in a moving vehicle, especially an industrial or commercial or special vehicle, the method comprising;
preparing a vehicle equipped with hybrid drive of the parallel type, comprising a thermal engine, an electric motor-generator, a single clutch unit placed between the two engines, an automated manual transmission, and a hybrid power steering both hydraulic and electric; enabling of a stop phase, in which the motor-generator assumes the management of the speed of rotation of a primary of the gearbox; activation of the stop phase; maintaining of the stop phase; and activation of the start phase; wherein said enabling step of the stop phase comprises the following verifications; released accelerator pedal or gear shifting request by the automated manual transmission; vehicle speed higher than a first threshold value (Vs); road slope comprised between two limit values (P1, P2); activation of a control system (EPS) of the electric power steering; verification that the charging status of a drive battery of the electric motor is higher than a threshold value (SOCD); verification of the opening status of the clutch; verification of engagement of the forward gear; said enabling of the stop phase being performed only if all the conditions mentioned above are verified. - View Dependent Claims (2, 3, 4, 5, 6)
- start function in a moving vehicle, especially an industrial or commercial or special vehicle, the method comprising;
Specification