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High voltage power supply device

A high-voltage power supply and high-voltage technology, applied to electrical devices, motors, electric vehicles, etc., can solve problems that affect driving safety, excessive output torque difference between left and right wheels, and vehicle swaying

Pending Publication Date: 2017-07-14
FAW VOLKSWAGEN AUTOMOTIVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that in the prior art, if the main controller sends a wrong control signal to one of the DC contactors, or if one of the DC contactors fails, the output torque difference between the left and right wheels may be too large, thereby causing the vehicle to yaw. Seriously affect the problem of driving safety, the embodiment of the present invention provides a high-voltage power supply device, the technical solution is as follows:

Method used

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Embodiment 1

[0036] This embodiment provides a high-voltage power supply device, the high-voltage power supply device is applied to distributed two-drive electric vehicles, see figure 1 as shown, figure 1 A general schematic diagram of a high-voltage power supply device according to an embodiment of the present invention is shown. In this embodiment, the high-voltage power supply device includes a power battery 10 , an in-wheel motor module 20 , a main controller 30 and a DC contactor 40 .

[0037] Specifically, the hub motor module 20 includes a hub motor controller 21 and two coaxial hub motors 22, the hub motor controller 21 is used to control the two hub motors 22; wherein, the two hub motors 22 can be controlled by the hub motor The control of device 21 independently drives left and right front wheels or trailing wheels respectively.

[0038] Wherein, there are two in-wheel motor controllers 21, and the two in-wheel motor controllers 21 respectively control one in-wheel motor 22, and...

Embodiment 2

[0054] This embodiment provides a high-voltage power supply device, which is applied to a distributed four-wheel drive electric vehicle and a parallel hybrid electric vehicle driven by a distributed motor. see image 3 as shown, image 3 A general schematic diagram of a high-voltage power supply device according to an embodiment of the present invention is shown. In this embodiment, the high-voltage power supply device is the same as Embodiment 1, the difference is that there are two DC contactors 40 in this embodiment, and there are two in-wheel motor modules 20, and the two DC contactors 40 are respectively connected in series with the high-voltage Between the positive pole of the power battery 10 and the two in-wheel motor modules 20, one of the DC contactors 40 is correspondingly connected to the in-wheel motor controller 21 in one of the in-wheel motor modules 20; the other DC contactor 40 is correspondingly connected to the other The hub motor controller 21 in the hub ...

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Abstract

The invention discloses a high voltage power supply device, and relates to the field of electric vehicle power supply. The high voltage power supply device comprises a power battery, a hub motor module, a main controller and a DC contactor connected with the main controller; the hub motor module comprises a hub motor controller and two coaxial hub motors, and the hub motor controller is used for controlling the two hub motors; and the power battery is connected in series with the hub motor controller through the DC contactor; and the main controller is used for controlling the DC contactor to open and close. Consequently, connection of the power battery and the hub motor controller is controlled by controlling opening and closing of the DC contactor through the main controller, simultaneous power supply of the two hub motors is achieved, and vehicle yaw caused by output torque difference of a left wheel and a right wheel which are controlled by the two hub motors correspondingly being too large is avoided, so that safety of driving is improved.

Description

technical field [0001] The invention relates to the field of electric vehicle power supply, in particular to a high-voltage power supply device. Background technique [0002] While the automobile industry has brought many conveniences to human society, it has also caused many social problems, such as environmental pollution and energy shortage. Electric vehicles have the advantages of zero emissions and high energy utilization, and are a good way to solve these two major social problems. [0003] There are two main ways of structural arrangement of electric vehicle power transmission system: centralized and distributed. [0004] Centralized drive electric vehicles are equipped with mechanical differentials. For ordinary differentials, the torque distribution ratio of the left and right driving wheels is close to 1:1. When one of the wheels slips on a wet road, the driving torque transmitted to it It is greatly reduced, causing the driving force transmitted on the other whe...

Claims

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Application Information

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IPC IPC(8): B60L3/00B60L11/18
CPCB60L3/00B60L50/52B60L2220/44B60L2220/42B60L2220/20Y02T10/64Y02T10/70
Inventor 宁兴江吕楠张侃刘锦刘庆鹏
Owner FAW VOLKSWAGEN AUTOMOTIVE CO LTD
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