Title:
VEHICLE CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2020001587
Kind Code:
A
Abstract:
To provide a vehicle control device which can suppress generation of noise caused by the self-excited vibration of a valve body of an electromagnetic valve.SOLUTION: A vehicle control device for bringing an electromagnetic valve 501 to an open state by imparting a control current having a current value larger than a changeover current value being a current value which is set on the basis of magnitude of a pressure difference between input/output ports of the electromagnetic valve 501 to the electromagnetic valve 501, comprises: a control part 11 for performing valve-opening control for increasing the current value of the control current at a first current gradient up to a current value which is smaller than the changeover current value by a first prescribed amount when bringing the electromagnetic valve 501 to the open state from a closed state, and succeedingly increasing the current value of the control current at a second current gradient which is smaller than the first current gradient up until the current value of the control current becomes larger than at least the changeover current value; and a setting part 12 for reducing the second current gradient as a target change gradient of the pressure difference becomes large.SELECTED DRAWING: Figure 1
Inventors:
KINOMURA YUJI
OZEKI KEIKO
ISHIMURA JUNJI
OZEKI KEIKO
ISHIMURA JUNJI
Application Number:
JP2018123989A
Publication Date:
January 09, 2020
Filing Date:
June 29, 2018
Export Citation:
Assignee:
ADVICS CO LTD
International Classes:
B60T13/68; B60T8/17; F16K31/06
Domestic Patent References:
| JP2015199456A | 2015-11-12 | |||
| JP2006027453A | 2006-02-02 | |||
| JP2012236460A | 2012-12-06 |
Attorney, Agent or Firm:
Kiichi Yamamoto
Kobayashi Osamu
Kobayashi Osamu