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Power generation control device for vehicles

A power generation control and vehicle technology, which is applied to circuit devices, battery circuit devices, vehicle components, etc., can solve problems such as inability to change control signals, uncoordinated passengers, and changes in power generation

Inactive Publication Date: 2014-04-02
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, this vehicular power generation control device has the following problem: Since the power generation amount of the vehicular generator suddenly changes to the default value when the communication is interrupted, the power generation amount of the vehicular generator may change rapidly, which may adversely affect the vehicle system and cause inconvenience to the passengers. sense of coordination
However, this power generation control device has a problem that the content of the control signal cannot be changed after the engine is started, so that the control coordinated with the vehicle system cannot be performed after the engine is started.

Method used

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Embodiment Construction

[0017] Hereinafter, embodiments of the present invention will be described based on the drawings. In addition, in each of the following embodiments, for the sake of simplification of description, the same reference numerals are assigned to the same or equal parts in the drawings.

[0018] Hereinafter, a vehicle power generation control device to which an embodiment of the present invention is applied will be described with reference to the drawings. figure 1 It is a block diagram showing the configuration of a vehicle power generation control device to which an embodiment of the present invention is applied. figure 1 Indicates the connection status between the vehicle power generation control device and the vehicle generator, battery, electrical load, and ECU (Electronic Control Unit).

[0019] exist figure 1 Among them, the vehicle power generation control device 2 is used to control so that the voltage of the output terminal (B terminal) of the vehicle generator 1 becomes ...

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Abstract

The invention provides a power generation control device for vehicles. The vehicle power generation control device (2) comprises a communication control circuit (204) for receiving communication frames periodically sent from ECU (5); a power generation voltage / field current control circuit (206) for performing power generation control on a vehicle power generator (1) by adopting a control value contained in the received communication frames as a power generation control value and performing power generation control by making a set power generation control value slowly approach a preset default value when no communication frames are received from the ECU (5) within a specified timeframe and communication is interrupted.

Description

technical field [0001] The present invention relates to a power generation control device for a vehicle that controls power generation of a power generator mounted on a vehicle such as a passenger car or a truck, and particularly relates to a power generation control device for a vehicle of a type that performs power generation control using communication with an external control device . Background technique [0002] In recent years, in order to improve the fuel efficiency of vehicles, low idling and low friction are being promoted. On the other hand, due to an increase in electrical load due to electrification of the system, torque fluctuations caused by the operation (output change) of the vehicle generator have a large influence on engine rotation changes. Therefore, by the control in which the engine control and the power generation control of the vehicle generator are coordinated, it is possible to perform control for stabilizing power supply and idling stabilization,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P9/14H02P9/30H02J7/16
Inventor 前原冬树
Owner DENSO CORP
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