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Method of controlling an electric motor of a hybrid powertrain according to a driver's setpoint

A technology of hybrid power and control method, which is applied in the direction of the layout of multiple different prime movers of hybrid vehicles, general power plants, and driver input parameters

Active Publication Date: 2021-07-09
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this control method is beneficial, it can only be applied to hybrid-like architectures

Method used

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  • Method of controlling an electric motor of a hybrid powertrain according to a driver's setpoint
  • Method of controlling an electric motor of a hybrid powertrain according to a driver's setpoint
  • Method of controlling an electric motor of a hybrid powertrain according to a driver's setpoint

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Embodiment Construction

[0020] The invention particularly relates to hybrid electric vehicles. The vehicle is preferably, but not necessarily, an external grid chargeable vehicle. The present invention proposes a control method for a first motor suitable for charging a high-power storage battery dedicated to power supply for a second motor for traction. The control method is used to limit the acoustic and vibration hazards of the drivetrain, in particular to reduce the charge if the driver's set point is increased. However, the method ensures a minimum charge level of the accumulator to power the electric traction of the vehicle, advantageously controlled according to the driver's settings, so as not to hinder the driver.

[0021] First, a drivetrain architecture suitable for implementing the control method according to the invention is described. figure 1 and Figure 1b An example of a schematic diagram of such a powertrain is shown. exist figure 1 Among them, the hybrid power transmission asse...

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Abstract

The invention relates to a control method for a motor (13) of a hybrid power transmission assembly (1) to charge a storage battery (17) of a certain power for electric traction. The control method is configured such that the electric machine (13) extracts an extracted torque from the heat engine (11) with an upper limit, and the upper limit has been subtracted from a driver's setpoint to comply with acoustic constraints. According to the invention, when the driver's setting is greater than a torque threshold, the method limits the extracted torque to a lower limit to ensure charging of the battery (17) for electric traction.

Description

technical field [0001] The field of the invention relates to methods for controlling an electric machine of a hybrid powertrain according to driver settings to comply with acoustical constraints and to guarantee the charge level of the battery. Background technique [0002] A large number of architectures exist for the powertrain of a hybrid vehicle. One architecture includes a traction heat engine coupled to the front axle, a traction electric motor powered by a high-power battery and coupled to the rear or front axle and adapted to extract torque from the engine torque to charge the battery electric machine, wherein the engine torque is provided by a heat engine for traction. For the purpose of driving comfort, research is ongoing to reduce the acoustic and vibration noise generated by the power train and mainly emitted by the heat engine. However, charging the battery during driving increases the load on the heat engine and thus increases noise and vibration. [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/448B60K6/52B60W10/06B60W10/08B60W20/17B60K17/356B60W20/13B60W10/26B60K6/44B60W50/00
CPCB60K6/44B60K6/448B60K6/52B60K17/356B60W10/06B60W10/08B60W10/26B60W2050/0027B60W2510/244B60W2540/10B60W2710/0666B60W2710/083B60W20/13B60W20/17Y02T10/62
Inventor 奥利维尔·巴伦吉恩瓦莱丽·奥博伊斯
Owner PEZHO SITROEN AUTOMOBILS SA
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