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Electric car and heating system thereof

A heating system, electric vehicle technology, applied in electric vehicles, heating/cooling equipment, circuits, etc., can solve the problems of large space occupation and increased cost, and achieve the effect of small space occupation, high reliability and low cost

Active Publication Date: 2017-04-05
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When an electric vehicle needs to meet power battery heating and vehicle heating at the same time, two sets of control systems need to be used, so it takes up a lot of space and increases the cost

Method used

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  • Electric car and heating system thereof
  • Electric car and heating system thereof
  • Electric car and heating system thereof

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Embodiment Construction

[0023] 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 and are intended to explain the present invention and should not be construed as limiting the present invention.

[0024] A heating system for an electric vehicle and an electric vehicle according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0025] figure 1 is a schematic block diagram of a heating system for an electric vehicle according to an embodiment of the present invention. Such as figure 1 As shown, the heating system of the electric vehicle includes: a battery management device 10, a switch module 20, a power gear switch 30, an electric heater 40, a vehicle heating...

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Abstract

The invention discloses a heating system of an electric car and the electric car with the heating system. The heating system comprises a battery management device, a switch module, a power gear position switch, an electric heater, a vehicle heating device and a master controller, wherein the battery management device comprises a power battery and a battery manager, and the battery manager acquires the temperature and SOC of the power battery; the master controller is used for controlling the switch module to be connected when the temperature of the power battery is smaller than a first preset temperature and the SOC of the power battery is larger than a first preset value, and making the heating system work in a first power mode by controlling the power gear position switch; and when the heating system works in the first power mode, the power battery generates heat through an internal resistance so that self-heating of the battery can be performed, and meanwhile, the electric heater works at the first power to heat a compartment through the vehicle heating device. By means of the heating system, the power battery can be heated and the car can be heated at the same time, reliability is high, the occupied space is small, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a heating system of an electric vehicle and an electric vehicle. Background technique [0002] At present, there are many ways to heat the power battery. For example, an external heat source can be used to heat the power battery, but due to the heating efficiency and space occupation, the use effect is relatively poor; the power battery can also be heated by pulse charging and discharging. That is, the control system outputs a suitable duty cycle to the power battery, and the internal resistance of the power battery itself generates heat to achieve heating. However, due to the relatively large instantaneous power, the voltage of the power battery is too low, and long-term use will affect the service life of the power battery. , and the requirements for the reliability and service life of the control system are relatively high. [0003] Vehicle heating usually uses the ...

Claims

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Application Information

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IPC IPC(8): B60L11/18B60H1/22H01M10/615H01M10/625
CPCY02E60/10Y02T10/70
Inventor 陈留辉刘璋勇
Owner BYD CO LTD
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