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Vehicle positioning for inductive energy transfer

A vehicle, inductive charging technology, used in vehicle energy storage, vehicle components, road vehicle drive control systems, etc., to solve problems such as narrow tolerance ranges and limited mobility

Pending Publication Date: 2019-11-15
BAYERISCHE MOTOREN WERKE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the relatively narrow tolerance range compared to the dimensions of the vehicle, reaching the charging point is a particular challenge for the vehicle operator or for the vehicle when positioned in the charging point with automation assistance
In particular, the mobility of the vehicle is relatively limited to a narrow tolerance range of a few centimeters

Method used

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  • Vehicle positioning for inductive energy transfer
  • Vehicle positioning for inductive energy transfer
  • Vehicle positioning for inductive energy transfer

Examples

Experimental program
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Effect test

Embodiment Construction

[0069] figure 1 A view of the vehicle ( 6 ) along the z-axis of the vehicle is shown schematically in a vehicle reference frame known to those skilled in the art. In the x-y plane of the vehicle, there is a vehicle-integrated secondary charging unit (4) in the underbody region of the vehicle. There is a primary charging unit (2, 2') outside the vehicle close to the ground for the inductive transfer of energy from the primary charging unit to the secondary charging unit for charging the energy storage of the vehicle. The primary charging unit is offset from the secondary charging unit in the z-direction (gap between the underbody of the vehicle and the ground), wherein for charging purposes only the primary charging unit is desired relative to the secondary charging unit in the x- and y-directions The maximum offset of . The vehicle should therefore be as close as possible to the primary charging unit, so that the secondary charging unit follows a motion curve Tz along which ...

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Abstract

The invention relates to a method for bringing a vehicle (6) closer to an off-board primary charging unit (2) for inductively charging the vehicle, wherein the vehicle comprises a secondary charging unit, a camera system and a display device, comprising the following steps: d) capturing a real-time image (1) of the vehicle environment with the camera system, wherein the primary charging unit is recorded by the real-time image; e) displaying the real-time image in the display device; f) superimposing at least one guide line (3a, 3b) onto the real-time image, wherein the direction and / or curvature of the guide line coincides with a steering angle of the vehicle in such a way that the guide line corresponds to the trajectory of the vehicle at the steering angle, and wherein the position of the overlaying of the guide line in the real-time image of the vehicle environment is selected such that the guide line displays the movement curve TZ of the secondary charging unit of the vehicle; d) repeating steps a) to c) in order to display the movement curve TZ relative to the primary charging unit, depending on a movement of the vehicle. The invention also relates to a vehicle configured forcarrying out the method.

Description

technical field [0001] The invention relates to a method for bringing a vehicle close to a primary charging unit outside the vehicle, which is suitable for inductively charging the vehicle, the vehicle comprising a secondary charging unit, a camera system and a display device. Furthermore, the invention relates to a method for positioning a vehicle in a charging station for inductive charging and a vehicle designed to carry out the method for approaching or both for approaching and for positioning. Background technique [0002] Vehicles, especially vehicles with electric drives, include rechargeable batteries for storing electrical energy. The rechargeable battery of the vehicle can be charged, for example, by being connected to a power supply external to the vehicle, for example by connecting to a public power grid. A method for automatic, cable-free inductive charging of a battery of a vehicle consists in transferring electrical energy to the battery from the ground to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/36B60L53/38H02J50/90
CPCB60L2240/24B60L2250/16H02J50/90Y02T90/12Y02T10/7072Y02T90/14B60L53/38B60L53/36B60L53/37H02J50/10B60L53/126B60L53/122H02J2310/48Y02T10/70B60R1/00B60R2300/305B60Y2200/91B60Y2300/91B62D15/0295G01C21/3632G01C21/3647
Inventor T·赫尔佐克A·瓦格纳
Owner BAYERISCHE MOTOREN WERKE AG
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