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Selection method of high-voltage electric lead path of hybrid power and electromobile

A high-voltage electrical and electric vehicle technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as errors, achieve the effects of high model accuracy, solve design problems, and ensure safety

Active Publication Date: 2016-08-24
APTIV ELECTRIC SYST CO LTD
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Problems solved by technology

Therefore, if the design of the high-voltage wire is followed, it may lead to erroneous results

Method used

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  • Selection method of high-voltage electric lead path of hybrid power and electromobile
  • Selection method of high-voltage electric lead path of hybrid power and electromobile
  • Selection method of high-voltage electric lead path of hybrid power and electromobile

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Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The method described below can be used for any hybrid and electric vehicle. High voltage components are used to drive the vehicle. Electric vehicles are driven by batteries alone, and hybrid vehicles are driven by both an internal combustion engine and batteries. The high voltage known in the present invention refers to a voltage greater than 60 volts.

[0030] Such as figure 1 As shown, an exemplary high-voltage conductor system 00 in an electric vehicle is shown. The system 00 includes a high-voltage battery pack 30 , which can be charged from the outside of the vehicle through the AC plug 10 and the on-board charger 20 . The high-voltage battery pack 30 provides power to a 12V system 50 (such as a storage battery and a low-voltage load) via a DC-DC converter 40 . The high voltage battery pack 30 also provides electric power to the elect...

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Abstract

The invention relates to a selection method of a high-voltage electric lead path of a hybrid power and electromobile. The selection method is characterized by comprising the following steps: 1) establishing a vehicle model, and carrying out electric load simulation to obtain a high-voltage lead current curve; 2) establishing a lead model, carrying out lead thermal simulation according to the high-voltage lead current curve, and obtaining the real-time temperature rise data of the high-voltage lead; 3) according to the real-time temperature rise data of the high-voltage lead, selecting an initial lead path; and 4) judging whether the selected initial lead path meets a temperature rise condition or not, taking the selected lead path as a final value if the selected initial lead path meets the temperature rise condition, and otherwise, returning to 2). Compared with the prior art, the selection method has the advantages of being accurate in path selection, high in precision and the like.

Description

technical field [0001] The invention relates to the field of hybrid power and electric vehicles, in particular to a method for selecting the diameter of high-voltage electric wires of hybrid power and electric vehicles. Background technique [0002] The driving energy source of automobiles is being switched from internal combustion engines to chemical batteries. If the wire diameter selection method of low-voltage wires—Isotemp curve method is continued to solve the design problem of high-voltage wires, it may lead to wrong designs. High-voltage wires connect high-voltage components such as battery packs, inverters, and drive motors. These components are used to meet the power and energy requirements of the vehicle's drive and braking energy regeneration. During the operation of the whole vehicle, the current on the circuit connecting the high-voltage components will fluctuate violently. The Isotemp curve method can only handle the steady state current case. Therefore, if...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCY02E60/00
Inventor 粟亮孙韬王成君杨晓军
Owner APTIV ELECTRIC SYST CO LTD
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