Battery connection system for electric and/or hybrid vehicles

A hybrid vehicle and battery connection technology, applied in the system field, achieves the effects of reducing weight and volume, reducing electromagnetic noise, and extending life

Active Publication Date: 2019-01-04
FICO TRIAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So, the overall operating time of the pre-charge circuit is negligible, but even so, both the pre-charge resistor (6) and the pre-charge relay (5) have to be dimensioned according to the current peak instantaneous power

Method used

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  • Battery connection system for electric and/or hybrid vehicles
  • Battery connection system for electric and/or hybrid vehicles
  • Battery connection system for electric and/or hybrid vehicles

Examples

Experimental program
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Embodiment Construction

[0034] A preferred embodiment of the battery connection system is in image 3 is shown in , comprising a positive high voltage bus or line (10) connected to the positive terminal of the battery (1) and additionally connected to the first terminal of the load (2), and connected to the negative terminal of the battery (1) and additionally connected to the A negative high voltage bus or line (11) to which the second terminal of the load (2) is connected.

[0035] A first switch and a second switch are respectively connected at the positive high voltage bus and the negative high voltage bus (10, 11) to selectively connect and disconnect the battery (1) from the load (2). exist image 3 In an embodiment of the present invention, the first switch is a power transistor (13) and the second switch is a relay (14). exist Figure 4 In an embodiment of , both switches are power transistors (13, 16).

[0036] The load (2) consists of a motor (8) and a power inverter (9) which in a know...

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PUM

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Abstract

The invention provides a battery connection system for electric and / or hybrid vehicles. The invention refers a system for connecting and disconnecting batteries (1) from a propulsion engine (8) of anelectric and / or hybrid vehicle. At least one of a first or second main switches is implemented as semiconductor switching device (13) operated by a controller (15), to selectively connect and disconnect a battery (1) from a load (2), respectively through positive and negative high-voltage buses (10,11). The controller (15) is adapted for switching on and off the first and second switching devices,and to modulate the current flowing from the battery (1) to the load (2) to maintain the current below a limit for charging capacitance of the load and limiting inrush currents. Therefore, the pre-charging operation is carried out by the main switches, so that the use of a pre-charging circuit is avoided.

Description

technical field [0001] Generally, the present invention relates to electric and hybrid vehicles. More specifically, the present invention relates to a system for connecting and disconnecting a battery and a traction engine of an electric or hybrid vehicle. [0002] It is an object of the present invention to provide a simplified battery connection system for electric and hybrid vehicles, which can be manufactured with low costs and, at the same time, is characterized by increased efficiency. Background technique [0003] Hybrid and electric vehicles have a motor for propulsion that is powered by a high voltage battery typically rated at 300-600 volts. The battery and motor are electrically interconnected by a high voltage DC bus that carries direct current from the battery to the motor through the power electronics needed to drive the motor. [0004] Such as figure 1 As shown, the connection and disconnection of the battery (1) to the load (2) is usually performed by a ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L50/50B60R16/02
CPCB60R16/02B60L15/08B60L2240/549B60L2270/20B60L50/51H02J7/345H01H9/548H02J7/342H02J2310/48Y02T10/64Y02T10/70
Inventor E·S·马西普
Owner FICO TRIAD
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