Title:
VIBRATION REDUCING CONTROLLER
Document Type and Number:
Japanese Patent JP3121404
Kind Code:
B2
Abstract:
PURPOSE: To reduce a low frequency vibration being produced due to variations in combustion of each cylinder in time of idling with ceratinty as well as to improve the extent of riding quantity at the idling of a vehicle by detecting the amplitude of low frequency vibrational components in an engine directly and controlling it, in a vibration reducing controller.
CONSTITUTION: A vibration reducing controller consists of a multicylinder engine 1, a signal generator 2 generating a signal at each constant crank angle of the engine 1, a processor 3 converting the signal into engine speed, an arithmetic unit 5 detecting an output signal of the processor 3 and voltage of a battery 4 and doing an arithmetic process, a memory 6 storing the value calculated at the arithmetic unit 5 and an engine accessory 7 being driven by a signal outputted from the arithmetic unit 5.
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Inventors:
Sakae Hiketa
Yuzo Monmukai
Makoto Yamakado
Yuzo Monmukai
Makoto Yamakado
Application Number:
JP31790491A
Publication Date:
December 25, 2000
Filing Date:
December 02, 1991
Export Citation:
Assignee:
株式会社日立製作所
株式会社日立カーエンジニアリング
株式会社日立カーエンジニアリング
International Classes:
F02B75/06; F02D29/06; F02D45/00; (IPC1-7): F02D29/06; F02B75/06; F02D45/00
Domestic Patent References:
| JP255845A | ||||
| JP4311631A | ||||
| JP3230799A | ||||
| JP63212723A | ||||
| JP58211542A | ||||
| JP4300437A |
Attorney, Agent or Firm:
Kasuga
Katsuo Ogawa (1 person outside)
Katsuo Ogawa (1 person outside)