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Method and control unit for activating actuators of a vehicle during emergency operation

一种执行器、运行中的技术，应用在执行器领域，能够解决未被提供、不经济等问题，达到避免减速效果、成本节省、结构空间节省的效果

Inactive Publication Date: 2014-05-21
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, high-pressure accumulators require a great deal of space in the vehicle, which is usually not provided
Furthermore, the weight of conventional high-pressure accumulators is so considerable that the construction of two accumulators is already uneconomical for weight reasons

Method used

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  • Method and control unit for activating actuators of a vehicle during emergency operation
  • Method and control unit for activating actuators of a vehicle during emergency operation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] figure 1 A schematic structure of a multi-voltage vehicle power supply in a vehicle known from the prior art is shown. basically occupy figure 1 A high voltage power supply is shown in the diagram of the entire space.

[0046] A drive accumulator HVB, a plurality of actuators A1, . An electric driving machine M. A voltage conversion of the high-voltage supply voltage, for example 400 or 800 volts direct current, into a vehicle supply voltage provided for the low-voltage supply takes place via the DC transformer DCD. A DC voltage of up to 12 volts is typically provided for the low-voltage power supply. The low voltage power supply is only passed through the figure 1 Symbolically indicated by two parallel extending straight lines in the right edge of . In this professional field, the concept of secondary power supply is sometimes referred to in relation to low-voltage power supply.

[0047] An actuator in the sense of this description is to be understood as an elec...

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PUM

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Abstract

A method includes determining failure of a drive energy store of a vehicle and activating generator operation of an electric main engine as a result of the failure. The method includes determining a current driving condition of the vehicle, what actuators are necessary in order to put the vehicle into a safe operating condition, and what each of the necessary actuator dynamics are based on the current driving condition of the vehicle. The method includes determining a demand for electrical energy that is necessary for a particular necessary actuator to attain the safe operating condition, and regulating a proportionate generator operation of the electric main engine, taking into consideration electrical energy of the necessary actuators required for carrying out each of the necessary actuator dynamics. The method includes activating the actuators necessary for achieving the safe operating condition with the determined actuator dynamics until the safe operating condition is achieved.

Description

technical field [0001] The invention relates to a method and a control unit for actuating actuators of a vehicle in emergency operation. Background technique [0002] Vehicles with electric drive machines will be widely deployed in the future. For vehicles with an electric drive or a hybrid drive, it has been found that the electric drive machine is operated in a voltage range of 100 to 800V. This presents a high voltage compared to typical vehicle electrical supplies of motor vehicles which operate in the usual voltage range of 12 to 24 volts. [0003] The vehicle power supply associated with the drive machine is usually referred to as a high-voltage power supply, and the vehicle power supply operating in the usual voltage range is called a low-voltage power supply. The high-voltage power supply and the low-voltage power supply are combined into a multi-voltage vehicle power supply in such electric or hybrid vehicles. [0004] Electric vehicles or hybrid vehicles, herein...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00B60L1/00B60L11/18
CPCB60L1/003B60L3/0007B60L3/003B60L3/0046B60L3/0061B60L3/10B60L7/14B60L7/24B60L50/16B60L50/51B60L58/20B60L2210/10B60L2240/12B60L2240/22B60L2240/24B60L2240/36B60L2240/425B60L2240/445B60L2240/525B60L2240/527B60L2260/16B60L2260/26B60L2260/44B60L2260/54B60W10/18B60W50/035Y02T10/64Y02T10/70Y02T10/7072Y02T10/72B60W10/20B60W10/30B60W30/00
Inventor M.费林G.弗赖塔格K-J.库恩
Owner SIEMENS AG
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