Title:
VEHICLE CONTROL METHOD AND POWER SYSTEM FOR HYBRID ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2018/177357
Kind Code:
A1
Abstract:
Disclosed is a vehicle control method for a hybrid electric vehicle, comprising: after detecting a start signal of a hybrid electric vehicle, a body control module (BCM) sending start request information respectively to a vehicle control unit (VCU), a motor control module (MCU) and an engine control module (ECM); when one of the BCM, MCU and ECM is provided with a backup module and the backup module does not receive feedback information generated by the VCU based on the start request information in a pre-set time, the backup module sending a self-inspection command respectively to a transmission control unit (TCU), a battery management system (BMS) and a sub-motor controller; and when the backup module determines that the hybrid electric vehicle meets a start condition according to received self-inspection result information fed back by the TCU, BMS and sub-motor controller and detects that the BMS loses efficacy, controlling the hybrid electric vehicle such that same runs in a fuel-only mode or a series mode or a series-parallel mode. The present invention further relates to a power system for a hybrid electric vehicle. The vehicle control method can control the hybrid electric vehicle such that same limps safely to a destination even if the VCU and BMS lose efficacy, thus ensuring the safety of the vehicle.
Inventors:
LI KAIQI (CN)
LI LINGKAI (CN)
XU BOLIANG (CN)
LIN JINCHEN (CN)
LI LINGKAI (CN)
XU BOLIANG (CN)
LIN JINCHEN (CN)
Application Number:
PCT/CN2018/081043
Publication Date:
October 04, 2018
Filing Date:
March 29, 2018
Export Citation:
Assignee:
BYD CO LTD (CN)
International Classes:
B60W20/00; B60W10/04; B60W50/02
Foreign References:
| CN101734140A | 2010-06-16 | |||
| CN101927764A | 2010-12-29 | |||
| CN104071153A | 2014-10-01 | |||
| CN104192142A | 2014-12-10 | |||
| DE102010017863A1 | 2011-10-27 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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