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Vehicle charging method and vehicle charging device

A vehicle and control device technology, applied to battery circuit devices, electrical devices, circuit devices, etc., can solve problems such as corrosion and operational failure

Active Publication Date: 2019-03-22
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Charging times can exceed seven hours per day, and thus expose lead-acid batteries to very long daily charging times, which can lead to premature operational failure due to water loss, corrosion, or internal battery short circuits

Method used

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  • Vehicle charging method and vehicle charging device
  • Vehicle charging method and vehicle charging device
  • Vehicle charging method and vehicle charging device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0071] figure 1 Schematically shows a circuit diagram of a first exemplary embodiment of a charging device 1 for a vehicle—in particular a pure electric vehicle or an electric vehicle or a plug-in hybrid electric vehicle—according to the invention, the charging device It is used to charge a main electrical energy store (not shown) installed in the vehicle, in particular a traction battery, from a power source (also not shown) arranged outside the vehicle. also, figure 1 The charging device 1 described in contains means for converting the voltage supplied by an external power source into a low DC voltage. The input 3 of the converter 2 can be supplied directly with a voltage supplied by an external power source, in particular an AC voltage, or from an external power source with a high DC voltage already converted in the vehicle, which is used, for example, to power the mains Charging of the accumulator, especially the traction battery of the vehicle. In the first case, the c...

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PUM

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Abstract

The present invention relates to a method of charging a main energy storage installed in a vehicle by means of a power supply arranged outside the vehicle, when the main energy storage is charged by the external power supply, the voltage provided by the external power supply is converted into a low DC voltage by a converter, and A low DC voltage is supplied to the vehicle's low voltage loads. According to the invention, during the charging of the main energy storage by means of an external power source, the state of charge of the additional energy storage, which stores electrical energy for the supply of low-voltage loads, is determined, if the state of charge is sufficient for low-voltage loads. For the normal supply of voltage loads, the additional energy storage is effectively electrically decoupled from the low DC voltage and the low voltage load by means of the electronic control unit, and, if the state of charge is insufficient for the normal supply of the low voltage load, the additional energy storage Actively electrically coupled to the low DC voltage through the electronic control unit. The invention also relates to a charging device.

Description

technical field [0001] The invention relates to a charging method for a vehicle, in particular to a charging method for a pure electric vehicle or an electric vehicle or a plug-in hybrid electric vehicle, and also relates to a charging device for a vehicle, especially to a pure electric vehicle or an electric vehicle or Charging devices for plug-in hybrid electric vehicles. Background technique [0002] Electric vehicles, plug-in hybrid electric vehicles, etc. are known electric vehicles designed to feed an electric motor for driving the vehicle from a primary energy store, eg a traction battery or a traction battery. Also, vehicles of this type typically also have additional energy storage, such as lead-acid batteries, which supply electrical energy to the vehicle's low-voltage loads, such as various electronic controls and loads, which provide comfort and safety features, etc. . [0003] The vehicle's lead-acid battery is configured to charge during vehicle operation and...

Claims

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Application Information

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IPC IPC(8): B60L53/20H02J7/34
CPCB60L1/00B60L53/14B60L58/20H02J7/1423H02J7/34Y02T10/70Y02T10/7072Y02T90/14B60L3/00B60L50/50B60L53/00H02J7/00
Inventor M·爱佛特彼得·施米茨
Owner FORD GLOBAL TECH LLC