Charging duration prediction of high-voltage battery and motor vehicle

A charging duration, high-voltage battery technology, applied in the direction of motor vehicles, electric vehicles, battery/battery traction, etc., to achieve the effects of improved accuracy, reduced deviation, and simple devices

Pending Publication Date: 2021-01-08
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] A disadvantage of the known methods for determining the expected driving duration is that the charging duration of the high-voltage battery can often only be roughly estimated in the context of charging duration prediction.

Method used

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  • Charging duration prediction of high-voltage battery and motor vehicle
  • Charging duration prediction of high-voltage battery and motor vehicle

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Embodiment Construction

[0040] exist figure 1 A preferred embodiment of the motor vehicle 2 according to the invention is schematically depicted in a side view in . For driving the motor vehicle 2 and for recovery, the motor vehicle has at least one electric machine 6 . Motor vehicle 2 has a high-voltage battery 1 for supplying electrical energy, in particular for operating electric machine 6 . Furthermore, a low-voltage battery (not shown) for operating electrical components of motor vehicle 2 and / or a voltage converter (not shown) for adapting the voltage of high-voltage battery 1 to the low-voltage voltage (in particular 12 V) can be provided. A detection device 4 of the motor vehicle 2 for detecting the actual temperature of the high-voltage battery 1 is arranged on the high-voltage battery 1 . Furthermore, motor vehicle 2 has a route determination system 3 for determining the route to be traveled. Route determination system 3 is preferably designed as a navigation system. To determine the ex...

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Abstract

The invention relates to a method for predicting an expected charging duration of a high-voltage battery (1) of a motor vehicle (2), comprising the following steps: determining a route to be traveledby means of a route determination system (3) of the motor vehicle (2), and determining an actual temperature of the high-voltage battery (1) by means of an acquisition device (4) of the motor vehicle(2), determining an expected temperature progression of the high-voltage battery (1) by means of a determination device (5) of the motor vehicle (2) as a function of the determined travel route, an expected battery temperature of the high-voltage battery (1) at the charging pile is determined by means of the determination device (5), and an expected state of charge of the high-voltage battery (1)at the charging pile is determined by means of the determination device (5), and determining an expected charging duration of the high-voltage battery (1) at the charging pile by means of a determination device (5). The invention further relates to the motor vehicle (2) which is designed to carry out the method according to the invention.

Description

technical field [0001] The invention relates to a method for predicting a projected charging duration of a high-voltage battery (HV battery (high voltage battery)) of a motor vehicle. Furthermore, the invention relates to a motor vehicle which is designed to carry out the method according to the invention. Background technique [0002] The physical characteristics of high voltage batteries depend on battery temperature in addition to battery aging. Battery wear also depends on battery temperature. A method is known from DE 10 2017 127 029 A1 for estimating battery heating in order to select a battery temperature profile for a high-voltage battery and thus a particularly suitable journey for a high-voltage battery from a plurality of different driving routes route. The battery capacity and especially the charging power of high-voltage batteries depend on the battery temperature. The task of the method is therefore in particular to select a driving route in which the batte...

Claims

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Application Information

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IPC IPC(8): B60L50/60B60L58/10
CPCB60L50/60B60L58/10B60L2240/545B60L2260/56B60L2260/52B60L2260/54B60L2240/12B60L2240/642B60L53/14Y02T10/70Y02T10/72Y02T10/7072Y02T90/14Y02T90/16B60W20/12B60W10/26B60W10/08B60W2710/246B60W2510/246B60W2556/50B60W50/0097
Inventor C·阿舍W·克里格J·格雷戈尔O·科普
Owner VOLKSWAGEN AG
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