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Method and device for warming a traction battery of a vehicle

A vehicle and battery technology, applied to heating/cooling equipment, secondary batteries, circuits, etc., to achieve the effect of saving cost and structural space

Inactive Publication Date: 2013-11-13
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these measures in principle entail additional costs, e.g. due to additional hardware

Method used

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  • Method and device for warming a traction battery of a vehicle
  • Method and device for warming a traction battery of a vehicle
  • Method and device for warming a traction battery of a vehicle

Examples

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Embodiment Construction

[0034] figure 1 A vehicle 100 is schematically shown with a device 110 for heating a traction battery according to an embodiment of the invention. A device 110 , an adjustment device 115 , a traction battery 120 , an inverter 130 and an electric machine 140 are arranged in the vehicle 100 . The device 110 has an adjustment device 115 .

[0035] The inverter 130 is connected to the device 110 , the traction battery 120 and the electric machine 140 via electric lines. As next with the help of figure 2 As described, traction battery 120 and inverter 130 and optionally also electric machine 140 are thermally coupled via a cooling circuit. Electric machine 140 receives an alternating current from inverter 130 , which is generated by means of inverter 130 from a direct current received by traction battery 120 .

[0036] Regulation device 115 is designed to regulate the reactive current portion of the alternating current in order to generate more heat loss in inverter 130 and op...

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Abstract

The invention relates to a method for warming a traction battery (120) of a vehicle. The vehicle comprises an inverter (130), a cooling circuit (250) by means of which the traction battery (120) and the inverter (130) are thermally coupled, and an electric machine (140). The electric machine (140) receives an alternating current from the inverter (130), wherein said alternating current is generated by means of the inverter (130) from a direct current received by the traction battery (120). The method comprises a step of setting a reactive current proportion of the alternating current, in order to generate waste heat in the inverter (130) to warm the traction battery (120) via the cooling circuit (250).

Description

technical field [0001] The invention relates to a method for heating a traction battery of a vehicle, a device for heating a traction battery of a vehicle and a drive system for a vehicle with a corresponding device. Background technique [0002] At low temperatures, only very little power can be drawn from batteries, such as lithium batteries, which are used to provide drive power in the passenger car sector. There are inherent losses in harvesting the power that can be harvested at low temperatures, but not enough to heat the battery to a suitable operating temperature. To date, traction batteries in vehicles have been brought to operating temperature by various measures. In principle, however, these measures entail additional costs, for example due to additional hardware. [0003] DE 40 27 149 A1 discloses an electronic battery heater which is installed in a housing and attached to the battery by means of a double-sided adhesive film. Contents of the invention [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/50
CPCH01M10/5083Y02E60/12H01M10/5006H01M10/5097H01M10/5016B60H1/143H01M10/615H01M10/625H01M10/6571H01M10/667Y02E60/10H01M10/663
Inventor 伯恩哈特·德梅尔
Owner ZF FRIEDRICHSHAFEN AG
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