Device for automatically detecting a generator type of a motor vehicle
First Claim
1. An apparatus for automatically detecting a generator type of a motor vehicle having a generator (1) which is connected via an interface (3) to a control unit (5), and having a battery (4), characterized in that the control unit (5) has a memory (6) in which data of different generator types (A, B) are stored, and that the control unit (5) is embodied, by switching an electrical load (8) on and off, for detecting the voltage course at the generator (1) and, by comparison with the stored data, determining the generator type (A, B).
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Abstract
According to the invention, an apparatus for automatically detecting a motor vehicle'"'"'s generator type is proposed, in which the characteristic voltage course is measured at a terminal (DF) of the generator (1) and compared with values stored in memory. Via an interface (3), a control unit (5) is connected to the controller (2) or generator (1) and evaluates the voltage change (δDF) upon a load change. To that end, the voltage at the terminal (DF) is measured and evaluated before the electrical load (8) is turned on, after it is turned, and after it is turned off. By means of this apparatus, advantageously not only the generator type (A, B) but also incorrect installations can be ascertained.
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9 Claims
- 1. An apparatus for automatically detecting a generator type of a motor vehicle having a generator (1) which is connected via an interface (3) to a control unit (5), and having a battery (4), characterized in that the control unit (5) has a memory (6) in which data of different generator types (A, B) are stored, and that the control unit (5) is embodied, by switching an electrical load (8) on and off, for detecting the voltage course at the generator (1) and, by comparison with the stored data, determining the generator type (A, B).
Specification