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Electric automobile awakening system, electric automobile and electric automobile awakening method

An electric vehicle and wake-up source technology, applied in the automotive field, can solve the problems of poor stability of the wake-up system of the electric vehicle and the inability to wake up the control unit, etc., to achieve the effect of improving stability and reliability

Inactive Publication Date: 2021-06-29
宝能(广州)汽车研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when there is a functional or performance defect in the vehicle controller, other control units cannot be woken up, and the stability of the electric vehicle wake-up system is poor.

Method used

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  • Electric automobile awakening system, electric automobile and electric automobile awakening method
  • Electric automobile awakening system, electric automobile and electric automobile awakening method
  • Electric automobile awakening system, electric automobile and electric automobile awakening method

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Electric vehicles usually include an electric vehicle wake-up system, which is used to wake up multiple control units in the electric vehicle, so that the control units are converted from a sleep mode to a working mode, so as to realize the normal driving of the electric vehicle.

[0039] It can be understood that when the control unit is in the sleep mode, the power consumption of the electric vehicle is small; when the control unit is in the working mode, the control unit controls the corresponding modules to complete their respective goals and functions. For example, the vehicle controller controls the power system to realize driving, parking, cruising, etc.

[0040] refer to figure 1 , the electric vehicle wake-up system generally includes a plurality of control units 100 . Exemplarily, the wake-up system of an electric vehicle includes a Body Control Module (BCU for short), a Cruise Control System (CCS for short), a Vehicle Controller (VCU), and a Battery Manageme...

Embodiment 2

[0068] An embodiment of the present invention provides a method for waking up an electric vehicle, referring to figure 1 , the electric vehicle includes a plurality of control units 100 . Exemplarily, an electric vehicle may include a body control unit (BCU), a cruise control system (CCS), a vehicle controller (VCU), a battery management system (BMS), an charging and distribution unit (OBC), a gateway (CGW ), and at least two of a high voltage direct current to low voltage direct current converter (DC / DC).

[0069] The electric vehicle wake-up method includes: when any control unit 100 of the plurality of control units 100 receives the first wake-up signal from the wake-up source, the first one is woken up, and the first woken-up control unit 100 wakes up other control units through the CAN bus 200 Unit 100 ; when one or more of the other control units 100 are not awakened, the first awakened control unit 100 wakes up the unawakened control units 100 through the hard line 300...

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Abstract

The invention provides an electric automobile awakening system, an electric automobile and an electric automobile awakening method, relates to the technical field of automobiles, and aims to solve the technical problem that the electric automobile awakening system is poor in stability. The electric automobile awakening system comprises a plurality of control units, an input port and an output port of each control unit are connected with a hard wire, all the hard wires are in communication connection, a bus port of each control unit is connected with a CAN bus, and all the CAN buses are in communication connection. The control units receive a first wake-up signal, and the control unit receiving the first wake-up signal is awakened first; and the first awakened control unit awakens other control units through the CAN bus. When one or more of the other control units are not awakened, the first awakened control unit awakens the control unit which is not awakened through the hard wire. Each control unit can receive the first wake-up signal, and the first wake-up signal and the control unit are discretized, so that the stability of the electric vehicle wake-up system is improved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an electric vehicle wake-up system, an electric vehicle and an electric vehicle wake-up method. Background technique [0002] Electric vehicles have the advantages of high efficiency, energy saving, and low pollution, and have gradually become the main direction of contemporary automobile development. In an electric vehicle, the power system is an indispensable part. Multiple components of the power system are usually equipped with control units, and these control units exchange information to form the entire power system. [0003] With the development trend of diversified and complex functions of electric vehicles, different functions are often coordinated by different single or multiple control units. In the electric vehicle wake-up system, there are various wake-up sources corresponding to different functions. When the wake-up source is triggered, the first wake-up signal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/20
CPCB60L15/20Y02T10/72
Inventor 任志伟
Owner 宝能(广州)汽车研究院有限公司
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