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Driving system control method of vehicle including at least two driving systems

A technology of a driving system and a control method, which can be applied to the arrangement of multiple different prime movers of hybrid vehicles, motor vehicles, and general power plants, and can solve problems such as driving difficulties.

Active Publication Date: 2017-02-22
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] An advantage of this drive system control method is that it allows the additional torque to be commanded in advance by preparing to supplement the drive system to account for driving difficulties due to, for example, the need to cross obstacles, wheel slippage, or special grades, by comparing the theoretical acceleration Risk of problems caused by active drive systems that cannot release the required torque due to early detection of the actual acceleration

Method used

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  • Driving system control method of vehicle including at least two driving systems

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Embodiment Construction

[0028] figure 1 A hybrid vehicle 1 is shown comprising a front axle assembly 2 provided with a heat engine 4 connected to a transmission 6 including an automatic gearbox. The transmission 6 includes an output differential for releasing the torque C1 applied to the wheels, which does not drive the axles of the two front wheels 8 of the vehicle 1 .

[0029] The hybrid vehicle 1 also comprises a rear axle assembly 10 provided with a battery-powered traction motor 12 connected in a permanent manner to a transmission 14 comprising an output differential driven via the axle The two rear wheels 16 of the vehicle, in order to exert a torque C2 on these wheels.

[0030] The control computer 20 of the drive system receives: information about the operation of the drive system, especially the torque C1 exerted by the heat engine 4 on the wheels and the torque C2 exerted by the electric motor 12 on the wheels; information about the operation of the vehicle, especially its actual accelerat...

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Abstract

Method for controlling the drive of a vehicle that has at least two drive systems for traction, an active drive system (12) and a complementary drive system (4) which, in a deactivated state, has a preparation lead-time before it can deliver a torque, characterized in that with the active drive system (12) applying a toque (C2) to the wheels to allow the vehicle to drive along, and with the complementary drive system (4) deactivated, it calculates a theoretical acceleration of the vehicle (Aveh theoretical) which is dependent on the torque (C2) applied by this active drive system (12), on the speed of the vehicle (V), and the driving conditions (F0, Fl, F2), then it compares this with the measured actual acceleration of this vehicle (Aveh actual) and if it detects a discrepancy higher than a threshold value, it immediately commands activation of the complementary drive system (4).

Description

technical field [0001] The present invention relates to a drive system control method of a vehicle comprising at least two drive systems, and a vehicle implementing the method. Background technique [0002] This type of vehicle includes two different drive systems driving one or two train wheels, with different starting characteristics. Both propulsion systems can require the assistance of both to release torque while in motion, allowing the vehicle to accelerate at the driver's request. [0003] In particular, some hybrid vehicles include a heat engine and a traction motor connected to the drive wheels through a transmission. [0004] In the case of a thermal engine connected to the two motor wheels via an automatic transmission, in particular via an automatic gearbox, the computer controlling the traction chain can decide to activate this drive system depending on various parameters, such as the driver's request, the vehicle condition or the transport situation . [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/48B60K6/52B60W20/10B60W50/06B60W10/06B60W40/10
CPCB60K6/48B60K6/52B60W10/06B60W20/00B60W40/1005B60W50/06B60W2510/083B60W2510/10B60W2510/105B60W2520/10B60W2520/105B60W2530/16Y02T10/40Y02T10/62
Inventor Y·米约F·加利诺
Owner PEZHO SITROEN AUTOMOBILS SA
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