摘要:
A device (D) is intended to control a so-called "creeping travel" mode of a vehicle (V) that is capable of moving the latter (V) at a slow speed by providing a variable torque produced by a power train without the driver actuating the brake pedal or an accelerator pedal. This device (D) comprises control means (MC) arranged, when this mode has been activated, to analyse the value of a parameter representative of the current speed of the vehicle (V) consecutive to an actuation of the brake pedal during a first period shorter than a first chosen threshold, and to trigger a deactivation of this mode after a second chosen duration, consecutive to this first duration, when the analysed value remains lower than a second threshold chosen during the second chosen time.
摘要:
A method for controlling a corrective oscillation-reducing function that limits the speed or torque oscillations on transmission elements linking an electric machine (20) to the wheels (22) of an electric or hybrid vehicle, said function correcting the torque setpoint given to this machine in order to limit these oscillations, from speed or torque measurements on the transmission, characterised in that, during the activation of the smoothness function, it counts the number of significant oscillations exceeding a predefined strength threshold within a time limit, and when said threshold has been exceeded a certain number of times, it deactivates the curative smoothness control function.
摘要:
Method for controlling torques in a hybrid vehicle for starting a combustion engine (2), comprising closing a clutch (8) that couples a gearbox (4) driving a first wheelset (6), this vehicle comprising an electric machine (20) which drives the second wheelset (22), characterized in that in order to couple the combustion engine (2) controlled by a speed regulator it applies, at an instant prior to complete closure of the clutch (8), an instantaneous increase in the torque setpoint on this clutch in order thereafter to switch to regulation of the engine in terms of torque, this offset being calculated in such a way as to compensate for the variations in inertia by taking into consideration the inertia of the electric machine (20) and of the vehicle, and the torque of this machine and the resistant torque of the vehicle. - Figure 1 -
摘要:
Method for controlling torques for a hybrid vehicle, during a change in gear of a gearbox (4) connecting a combustion engine (2) to a first wheelset, this vehicle comprising an electric machine (20) which drives the second wheelset (22), characterized in that in order to open the clutch (8) the method decreases the control by torque of the combustion engine (2) which targets a low calculated target torque level, and correspondingly reduces the torque setpoint for the clutch, then at the instant (t1) when the target torque is reached it applies an abrupt drop in the torque setpoint and an instantaneous instruction to open the clutch (8), the target torque being calculated so that the drop forms an offset that compensates for the variation in inertia of the drivetrain due to the complete opening of the clutch.
摘要:
A device (D) for adapting a nominal curve for torque transmitted by a clutch (EM) with respect to a position of an actuator of the clutch (EM) is designed to i) define a readjusted nominal position equal to a nominal position minus a reference position from the nominal curve, (ii) determine, for at least one chosen readjusted nominal position, a difference between an observed torque and an estimated and corrected transmissible torque that is a function of a correction coefficient and of an estimated transmissible torque, a function of the value of a conversion coefficient and of first and second nominal extreme curves, and (iii) determine for each chosen readjusted nominal position, in a readjusted nominal curve, a corresponding nominal torque so that it can be adapted according to the corresponding determined torque difference in order to obtain an adapted nominal torque, and to adapt the readjusted nominal evolution curve as a function of each adapted nominal torque in order to obtain an adapted nominal evolution curve.