Motor vehicle having an air-conditioning compressor as a starter of the internal combustion engine

A technology for motor vehicles and internal combustion engines, which is applied to the starting of the engine, the arrangement of multiple different prime movers of the general power plant, and the use of engine-driven traction. The effect of reducing the size, saving switch parts, and improving the overall level of automobile safety

Active Publication Date: 2016-03-30
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to voltage dips when starting the combustion engine, these safety-relevant loads may be underpowered and no longer fulfill their function

Method used

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  • Motor vehicle having an air-conditioning compressor as a starter of the internal combustion engine

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Embodiment Construction

[0023] The embodiment illustrated below is a preferred embodiment of the invention. In this exemplary embodiment, however, the described components of this embodiment each represent individual features of the invention that can be regarded as independent of each other, which also expand the invention independently of each other and can thus also be individually combined with Combinations other than those shown are considered to be part of the invention. Furthermore, the described embodiments can also be supplemented by other described features of the invention.

[0024] A motor vehicle 10 is shown schematically in the drawing, which can be, for example, a motor vehicle, for example a passenger car. The motor vehicle has a hybrid system (Hybrid-Antrieb for short) 12 which includes an internal combustion engine or internal combustion engine 14 and a drive motor 16 , ie an electric machine. The internal combustion engine 14 and the drive motor 16 can, for example, operate on a ...

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Abstract

The invention relates to a motor vehicle (10), comprising an internal combustion engine (14) and an air-conditioning system (38), which comprises an electric motor (42), which is designed to drive a compressor (40) of the air-conditioning system (38) in order compress a cooling fluid. A controllable coupling device (46) is designed to mechanically couple the electric motor (42) of the air-conditioning system (38) to the internal combustion engine (14) in dependence on a control signal. The electric motor (42) is accordingly designed to drive the internal combustion engine (14) as an electric starter in the state in which the electric motor is coupled to the internal combustion engine (14). The aim of the invention is to ensure stable operation of low-voltage loads (54) in the motor vehicle (10) when the compressor motor (42) of the air-conditioning system (38) is used to start an internal combustion engine (14). According to the invention, an inverter (44) of the electric motor (42) of the air-conditioning system (38) is designed to operate the electric motor (42) directly by means of a high voltage of a high-voltage vehicle electrical system (26) of the motor vehicle (10).

Description

technical field [0001] The invention relates to a motor vehicle with an internal combustion engine and an air conditioning system. The air conditioning system has a compressor driven by an electric motor. The electric machine is also used as a starter / starter for the internal combustion engine. A motor vehicle of this type is known, for example, from US 2007 / 0187953 A1. Background technique [0002] In addition to the clutch devices known from the above-mentioned documents for mechanically coupling the electric machine of a compressor of an air-conditioning system with, for example, the crankshaft of an internal combustion engine, other coupling devices for selectively coupling an electric machine to an internal combustion engine are known from documents DE 19931963 A1 and DE 10001436 A1. A clutch for starting an internal combustion engine. "Selectively" can be understood here to mean that when the clutch device mechanically couples the electric machine to the internal co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N11/04B60H1/00F02N11/08B60W10/06B60W10/08B60W10/30B60W30/18F02N11/00B60W20/40B60W20/14B60L50/10
CPCB60H1/004B60H1/00428B60W10/30B60W30/18127F02N11/003F02N11/006F02N11/04F02N11/084F02N11/0866F02N2011/0888F02N2011/0896F02N2200/0806F02N2250/02B60K6/28B60L1/003B60W10/06B60W10/08B60K2006/4825B60W2710/083B60W20/40B60W20/14H02J7/02B60L2240/423B60L2240/443B60L2260/26Y02T10/88Y10S903/93Y02T10/62Y02T10/64B60K6/26B60K6/442B60K2006/268B60W10/02B60W20/10B60Y2200/92B60Y2300/182B60Y2300/42B60Y2300/43B60Y2300/63B60Y2400/88
Inventor A·阿佩斯迈尔
Owner AUDI AG
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