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Method for regulating the actual torque delivered by an electric machine in a motor vehicle to the nominal torque

A technology of rated torque and actual torque, applied in the direction of using engine-driven traction, motor vehicles, and the arrangement of multiple different prime movers of general power plants, which can solve the problem of expensive protection measures, high additional costs, and high integration costs. and other problems, to achieve the effects of improved starting characteristics, low consumption and low cost

Active Publication Date: 2017-01-18
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to complex system structures, as well as large changes in the drive assembly and complex protective measures due to high voltages
In addition to high integration costs, such a system also entails high additional costs

Method used

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  • Method for regulating the actual torque delivered by an electric machine in a motor vehicle to the nominal torque
  • Method for regulating the actual torque delivered by an electric machine in a motor vehicle to the nominal torque
  • Method for regulating the actual torque delivered by an electric machine in a motor vehicle to the nominal torque

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Embodiment Construction

[0026] exist figure 1 An electric machine on which the invention may be based is shown in a wiring diagram in FIG. 2 and is generally designated 100 . The electric machine has a generator part 10 and a converter part 20 . The converter components are usually operated as a rectifier during generator operation of the machine and as an inverter during motor operation.

[0027] Generator part 10 is shown only schematically in the form of a star-connected stator winding 11 and an excitation winding or rotor winding 12 connected in parallel with diodes. The rotor winding is pulsed switched by a power switch 13 , which is connected to a connection 24 of the converter part 20 . The actuation of the power switch 13 is carried out according to the standard of a field regulator 15, wherein the power switch 13 is usually integrated in the application-specific integrated circuit (ASIC) of the field regulator like a diode connected in parallel with the rotor winding 12 ASIC).

[0028] A...

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PUM

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Abstract

The invention relates to a method for adjusting an actual torque delivered by an electric motor in a motor vehicle to a target torque, wherein the electric motor comprises a stator winding (11), a rotor winding (12), a field rheostat (15) associated with the rotor winding (12), and a power converter (20) which is connected downstream of the stator winding (11) and has actuatable switch elements (21), wherein the actual torque is adjusted to the target torque in that a commutation angle is set by deliberately actuating the switch elements (21) and / or in that a current is deliberately set by the stator winding (12).

Description

technical field [0001] The invention relates to a method for regulating the actual torque delivered by an electric machine in a motor vehicle to a target torque. Background technique [0002] Claw-pole generators with electrical excitation are often used as electric machines in motor vehicles. The current through the rotor winding is used as the control variable for setting the desired output voltage and is preset by an associated field regulator. It is also known to use electric machines as starter generators to start the internal combustion engine on the one hand in motor operation of the electric machine and on the other hand to generate energy for the on-board electrical system and for charging the vehicle battery in generator operation of the electric machine. charging current. [0003] DE 103 17 207 A1 describes a method for generating as high a torque as possible when starting the motor in the case of a belt-driven starter generator. For this purpose, the commutati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L11/14H02P25/02B60K6/485B60L50/16
CPCB60W10/08B60W2510/0652B60W2510/0657B60W2540/10B60W2710/1022B60W20/19H02P6/15H02P6/28
Inventor R.贾罗斯J.勒斯纳
Owner ROBERT BOSCH GMBH
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