JPS5582302A - Duty ratio control method of solenoid valve - Google Patents
Duty ratio control method of solenoid valveInfo
- Publication number
- JPS5582302A JPS5582302A JP15778178A JP15778178A JPS5582302A JP S5582302 A JPS5582302 A JP S5582302A JP 15778178 A JP15778178 A JP 15778178A JP 15778178 A JP15778178 A JP 15778178A JP S5582302 A JPS5582302 A JP S5582302A
- Authority
- JP
- Japan
- Prior art keywords
- turning
- solenoid valve
- egr
- rate
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Flow Control (AREA)
- Magnetically Actuated Valves (AREA)
- Feedback Control In General (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
- Exhaust Gas After Treatment (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
PURPOSE: To improve the control response of a solenoid valve by calculating previously the target value of the duty ratio of turning-on to turning-off of the solenoid valve and comparing the ratio of turning-on to turning-off in a past prescribed frequency with the target value at every prescribed period to decide turning-on and turning-off.
CONSTITUTION: Computer 6 detects an engine state from outputs of rotary sensor 5 and air absorption quantity sensor 1 and reads out an optimum exhaust gas recirculation (EGR) rate at this time from a ROM and performs interpolation calculation and corrects this rate according to output values of absorption air temperature sensor 2, water temperature sensor 3 and air pressure sensor 20. For the purpose of achieving this corrected EGR rate, the controlling solenoid valve of air bleed 14 and solenoid valve 12 for EGR are turned on and off to perform feedback control so that the pressure of diaphragm room 91 of second valve 9 for EGR may be a calculation value corresponding to the target optimum EGR rate. Thus, turning-on and off of solenoid valves can be instructed directly from the computer, and the circuit is simplified, and control response is improved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15778178A JPS5582302A (en) | 1978-12-18 | 1978-12-18 | Duty ratio control method of solenoid valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15778178A JPS5582302A (en) | 1978-12-18 | 1978-12-18 | Duty ratio control method of solenoid valve |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5582302A true JPS5582302A (en) | 1980-06-21 |
JPS6126082B2 JPS6126082B2 (en) | 1986-06-19 |
Family
ID=15657148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15778178A Granted JPS5582302A (en) | 1978-12-18 | 1978-12-18 | Duty ratio control method of solenoid valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5582302A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5715164A (en) * | 1980-07-02 | 1982-01-26 | Nippon Carbureter Co Ltd | Solenoid valve |
JPS5781607A (en) * | 1980-11-07 | 1982-05-21 | Mitsuwa Seiki Co Ltd | Digital control method |
JPS5781604A (en) * | 1980-11-07 | 1982-05-21 | Mitsuwa Seiki Co Ltd | Control method for hydraulic actuator |
JPS5790707A (en) * | 1980-11-26 | 1982-06-05 | Mitsuwa Seiki Co Ltd | Digital control method |
JPS57103982A (en) * | 1980-12-22 | 1982-06-28 | Nissan Motor Co Ltd | Method of driving electromagnetic valve driving apparatus |
JPS58193961A (en) * | 1982-05-10 | 1983-11-11 | Toyota Motor Corp | Automatic transmission for automobile |
JPS59134801U (en) * | 1983-02-24 | 1984-09-08 | 株式会社チノ− | Controller output circuit |
US4528968A (en) * | 1983-06-22 | 1985-07-16 | Honda Giken Kogyo K.K. | Duty ratio control method for on-off type solenoid valves |
JPS61248949A (en) * | 1985-04-26 | 1986-11-06 | Nissan Motor Co Ltd | Line pressure control device of automatic transmission |
WO2003038324A1 (en) * | 2001-10-30 | 2003-05-08 | Bosch Automotive Systems Corporation | Method and apparatus for driving flow control electromagnetic proportional control valve |
-
1978
- 1978-12-18 JP JP15778178A patent/JPS5582302A/en active Granted
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5715164A (en) * | 1980-07-02 | 1982-01-26 | Nippon Carbureter Co Ltd | Solenoid valve |
JPS5781607A (en) * | 1980-11-07 | 1982-05-21 | Mitsuwa Seiki Co Ltd | Digital control method |
JPS5781604A (en) * | 1980-11-07 | 1982-05-21 | Mitsuwa Seiki Co Ltd | Control method for hydraulic actuator |
JPH0320761B2 (en) * | 1980-11-07 | 1991-03-20 | Sanwa Seiki Mfg Co Ltd | |
JPH0320762B2 (en) * | 1980-11-07 | 1991-03-20 | Sanwa Seiki Mfg Co Ltd | |
JPH0320763B2 (en) * | 1980-11-26 | 1991-03-20 | Sanwa Seiki Mfg Co Ltd | |
JPS5790707A (en) * | 1980-11-26 | 1982-06-05 | Mitsuwa Seiki Co Ltd | Digital control method |
JPS57103982A (en) * | 1980-12-22 | 1982-06-28 | Nissan Motor Co Ltd | Method of driving electromagnetic valve driving apparatus |
JPS58193961A (en) * | 1982-05-10 | 1983-11-11 | Toyota Motor Corp | Automatic transmission for automobile |
JPS59134801U (en) * | 1983-02-24 | 1984-09-08 | 株式会社チノ− | Controller output circuit |
US4528968A (en) * | 1983-06-22 | 1985-07-16 | Honda Giken Kogyo K.K. | Duty ratio control method for on-off type solenoid valves |
JPS61248949A (en) * | 1985-04-26 | 1986-11-06 | Nissan Motor Co Ltd | Line pressure control device of automatic transmission |
WO2003038324A1 (en) * | 2001-10-30 | 2003-05-08 | Bosch Automotive Systems Corporation | Method and apparatus for driving flow control electromagnetic proportional control valve |
US7387289B2 (en) | 2001-10-30 | 2008-06-17 | Bosch Automotive Systems Corporation | Method and apparatus for driving a solenoid proportional control valve utilized for flow rate control |
Also Published As
Publication number | Publication date |
---|---|
JPS6126082B2 (en) | 1986-06-19 |
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