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Torque filtering method, system and vehicle for dual-mode hybrid electric vehicle

A hybrid vehicle and torque technology, applied in the field of vehicles, can solve problems such as too slow and too fast torque

Active Publication Date: 2020-06-16
BEIQI FOTON MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the technology fails to fully consider the filtering requirements of different working conditions, the torque may be too slow or too fast under some working conditions

Method used

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  • Torque filtering method, system and vehicle for dual-mode hybrid electric vehicle
  • Torque filtering method, system and vehicle for dual-mode hybrid electric vehicle
  • Torque filtering method, system and vehicle for dual-mode hybrid electric vehicle

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Embodiment Construction

[0046] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0047] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refe...

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PUM

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Abstract

The invention discloses a torque filtering method and system for a dual-mode hybrid electric vehicle and a vehicle. The torque filtering method comprises the steps that when an engine works in a parallel mode and the output torque of the engine is greater than or equal to the first preset torque, a first rising limit and a first downward gradient limit of the torque of the engine are obtained according to the vehicle speed of the vehicle and the torque difference lookup table of the target torque and the actual torque; a first filtering torque of the engine is obtained by filtering the actualtorque of the engine after the actual torque is over the first rising limit and the first downward gradient limit of the torque of the engine. The torque filtering method and system for the dual-modehybrid electric vehicle and the vehicle have the advantages that filtering requirements under different working conditions can be met, so that driving comfortableness of the vehicle is guaranteed andthe impact of torque mutation on the power assembly parts or the vehicle is avoided.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a torque filtering method, system and vehicle of a dual-mode hybrid electric vehicle. Background technique [0002] Under different working conditions of a dual-mode hybrid electric vehicle, torque mutations or torque zero crossings may occur when the working modes of each powertrain component are switched, or the torque changes too fast or small in the same working mode, so the filtering algorithm needs to adapt to various Different working conditions, while ensuring the drivability of the vehicle, it is also necessary to protect the powertrain components and the vehicle. [0003] In related technologies, the static torque is used as the input condition of the controller, and the rate of change of the torque is used as a sign to judge whether to enter the acceleration and deceleration state, and a series of algorithms such as integration or filtering are used to achieve the ide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W20/15B60W40/00B60W10/06B60W10/08
CPCY02T10/62
Inventor 闫伟
Owner BEIQI FOTON MOTOR CO LTD