Device and method for starting an internal combustion engine arranged in a vehicle

Abstract

The invention relates to a device and a method for starting an internal combustion engine (10) arranged in a vehicle. The invention includes: an electrical machine (32, 32', 32'') which is designed to at least temporarily drive the internal combustion engine (10) and a storage unit (34, 34', 54) which is designed to supply the electrical machine (32, 32 ', 32 ' ') at least temporarily with electrical energy. The vehicle further has a number of consumer assemblies (18, 20, 22) which can be driven at least temporarily by the internal combustion engine (10) via a respective operative connection (24, 26, 28, 30). According to the invention, a control unit (46) is provided, which is designed to activate at least one consumer assembly (18, 20, 22) upon the presence of a consumer assembly activation condition in order to generate and / or increase a load acting on the internal combustion engine (10), and subsequently to activate the electrical machine (32, 32 ', 32 ' ') to drive the internal combustion engine (10) upon the presence of an internal combustion engine start condition.

Description

technical field [0001] The invention relates to a device and a method for starting an internal combustion engine arranged in a vehicle. For starting the internal combustion engine, an electrical device is provided, which is designed to at least sometimes operate the internal combustion engine, and a storage unit, which is designed to at least sometimes supply the electrical device with electrical energy. In addition, the vehicle has a plurality of energy consumers, which can be driven at least sometimes by the internal combustion engine via a corresponding operating technology connection. Background technique [0002] For vehicles in use today, there is a need for improved starting performance compared to conventional vehicles. This is the case, for example, in vehicles equipped with so-called start-stop automatics, or also in hybrid vehicles. With the start-stop automatic, the internal combustion engine is switched off when parked or below a certain vehicle speed threshol...

AI Technical Summary

Problems solved by technology

[0011] For reflex starting, in which the restarting or additional starting process of the internal combustion engine is to be carried out immediately after the start of the resting process, the following problem now arises: Since the restarting process or the additional starting process follows the resting process, the rotational speed of the internal combustion engine is relatively low. The idle speed has not decreased significantly

But this pinion starter has the following disadvantages: it is expensive and cannot be put into use in all vehicle types

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