Title:
CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2020002843
Kind Code:
A
Abstract:
To improve accuracy of determining whether or not a throttle valve is frozen.SOLUTION: A control device 2 controls a throttle valve provided in an intake passage of an engine 4. In the control device 2, a timer setting section 21 sets a normal stand-by time in a timer 14. When the timer 14 detects elapse of the normal stand-by time, a temperature acquisition section 22 acquires a detection temperature Dt that is a temperature detected by a temperature sensor 11. A temperature recording section 23 records the acquired detection temperature Dt in temperature history data 20. When receiving a start signal of the engine 4, an acquisition instruction section 24 instructs the temperature acquisition section 22 to acquire a start temperature Di immediately before starting of the engine 4. A determination section 25 determines whether or not the throttle valve is frozen on the basis of the start temperature Di and the detection temperature Dt recorded in the temperature history data 20.SELECTED DRAWING: Figure 2
Inventors:
MOROKUZU KO
MORI KEI
MORI KEI
Application Number:
JP2018122165A
Publication Date:
January 09, 2020
Filing Date:
June 27, 2018
Export Citation:
Assignee:
DENSO TEN LTD
International Classes:
F02D9/02; F02D41/22; F02D45/00