Multi-battery system for increasing the electric range

A multi-battery, driving process technology that is applied to electrical devices, electric vehicles, battery/fuel cell control devices, etc., to achieve the effect of reducing energy loss

Active Publication Date: 2016-12-14
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] But the disadvantage of the battery system described above is that only one battery is available for a driving cycle, that is, a choice must be made before the start of the journey, which battery has the required state of charge sufficient to reach the destination

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  • Multi-battery system for increasing the electric range

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Embodiment Construction

[0026] The examples described below relate to preferred embodiments of the invention. In this exemplary embodiment, however, the parts of this embodiment represent individual features of the invention which are to be considered independently of each other, which also improve the invention independently of each other and are therefore individually or independently Combinations other than those shown are also considered to be part of the invention. Furthermore, the described embodiments can also be supplemented by other of the described features of the invention.

[0027]The single figure shows a motor vehicle 10 with a high-voltage on-board electrical system 19 comprising a control device 20 and a drive motor 20 and a multi-battery system 11 comprising two batteries 12 and 13 , wherein the multi-battery system 11 is connected to the control The devices 20 are connected via the switching unit 16 . The switching unit 16 has a plurality of contactors 14 and 15 , wherein the posi...

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Abstract

The invention relates to a motor vehicle (10), which comprises: a high-voltage electrical system (19) and a multi-battery system (11), which consists of a plurality of energy stores (12, 13) for supplying energy to an electric drive motor (21). The problem addressed by the invention is that of increasing the electric range of the motor vehicle (10) in a simple manner. This problem is solved in that each battery is connected to the high-voltage electrical system (19) by means of a separate switching unit, and a control device (20) detects the state of charge of each energy store and selectively connects the energy stores to the high-voltage electrical system (19) and / or disconnects the energy stores from the high-voltage electrical system in dependence on the state of charge of the energy stores, including during driving.

Description

technical field [0001] The invention relates to a motor vehicle with an electric motor, a high-voltage on-board electrical system and a plurality of energy stores, such as high-voltage batteries, which form a multi-battery system and serve to supply energy to a drive motor, wherein the The multi-battery system is connected with an inverter controlling a motor through a switching unit. In this case, the switching unit electrically separates the multi-battery system from the high-voltage vehicle electrical system. The invention also relates to a method for operating a motor vehicle. Background technique [0002] High-voltage on-board electrical systems and high-voltage energy stores / batteries are often used in electric vehicles, such as hybrid vehicles or battery-powered vehicles. [0003] High-voltage batteries in electric and hybrid vehicles have a storage capacity (ampere-hours) and a high-voltage voltage (this is understood here as a voltage greater than 60 volts, especi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00B60L3/04B60L11/18
CPCB60L3/04B60L58/18B60L58/12B60L58/21B60L58/20Y02T10/70B60L3/0046
Inventor J·施密特
Owner AUDI AG
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