JPS57140924A - Overheat preventing device - Google Patents

Overheat preventing device

Info

Publication number
JPS57140924A
JPS57140924A JP56025216A JP2521681A JPS57140924A JP S57140924 A JPS57140924 A JP S57140924A JP 56025216 A JP56025216 A JP 56025216A JP 2521681 A JP2521681 A JP 2521681A JP S57140924 A JPS57140924 A JP S57140924A
Authority
JP
Japan
Prior art keywords
clutch
timer
speed difference
adder
delivered
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
Application number
JP56025216A
Other languages
Japanese (ja)
Other versions
JPH0122495B2 (en
Inventor
Fujio Makita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Subaru Corp
Original Assignee
Fuji Jukogyo KK
Fuji Heavy Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Jukogyo KK, Fuji Heavy Industries Ltd filed Critical Fuji Jukogyo KK
Priority to JP56025216A priority Critical patent/JPS57140924A/en
Publication of JPS57140924A publication Critical patent/JPS57140924A/en
Publication of JPH0122495B2 publication Critical patent/JPH0122495B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • F16D48/064—Control of electrically or electromagnetically actuated clutches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/304—Signal inputs from the clutch
    • F16D2500/30406—Clutch slip
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/304—Signal inputs from the clutch
    • F16D2500/3041—Signal inputs from the clutch from the input shaft
    • F16D2500/30415—Speed of the input shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/304—Signal inputs from the clutch
    • F16D2500/3042—Signal inputs from the clutch from the output shaft
    • F16D2500/30426—Speed of the output shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/316—Other signal inputs not covered by the groups above
    • F16D2500/3166—Detection of an elapsed period of time
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/501—Relating the actuator
    • F16D2500/5016—Shifting operation, i.e. volume compensation of the master cylinder due to wear, temperature changes or leaks in the cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/502—Relating the clutch
    • F16D2500/50236—Adaptations of the clutch characteristics, e.g. curve clutch capacity torque - clutch actuator displacement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
    • F16D2500/70452—Engine parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
    • F16D2500/70452—Engine parameters
    • F16D2500/70454—Engine speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/706—Strategy of control
    • F16D2500/70668—Signal filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/71—Actions
    • F16D2500/7107—Others
    • F16D2500/7109—Pulsed signal; Generating or processing pulsed signals; PWM, width modulation, frequency or amplitude modulation

Abstract

PURPOSE:To detect the calorific value of a clutch, promptly, for preventing the clutch from being overheated, by obtaining a speed difference between a cluth drive shaft and a clutch driven shaft so that a timer is actuated after the duration of a time set by the timer when the speed difference is above a reference value, for changing the coupling characteristic of the clutch. CONSTITUTION:A crank shaft speed omegai is detected by an ignition pulse detecter 40 and is delivered to an adder 43 through a D/A converter 41 and a reverser 42. Meanwhile, an input shaft speed omegao is detected by a pickup 39 and is delivered to the adder 43 through a D/A converter 45 and a resistor 46. The adder 43 operates the speed difference omegao-omegai which is delivered to a comparator 44 for comparating it with a reference value alpha. The overheat condition of the clutch is appreciated when the speed difference is above the reference value alpha, so that a timer 48 is actuated. The timer 48 delivers a signal beta to a relay 49 which turns on a switch which is not shown and which increases the load of the engine in order to cause an engine stall, thereby the clutch is prevented from being heated.
JP56025216A 1981-02-23 1981-02-23 Overheat preventing device Granted JPS57140924A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56025216A JPS57140924A (en) 1981-02-23 1981-02-23 Overheat preventing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56025216A JPS57140924A (en) 1981-02-23 1981-02-23 Overheat preventing device

Publications (2)

Publication Number Publication Date
JPS57140924A true JPS57140924A (en) 1982-08-31
JPH0122495B2 JPH0122495B2 (en) 1989-04-26

Family

ID=12159757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56025216A Granted JPS57140924A (en) 1981-02-23 1981-02-23 Overheat preventing device

Country Status (1)

Country Link
JP (1) JPS57140924A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4762213A (en) * 1986-01-30 1988-08-09 Mazda Motor Corporation Driving system for a four-wheel drive vehicle
US5170868A (en) * 1990-10-31 1992-12-15 Suzuki Motor Corporation Automatic starting clutch control method
JP2010503811A (en) * 2006-09-18 2010-02-04 ボルボ ラストバグナー アーベー Clutch protection method
JP2013036580A (en) * 2011-08-10 2013-02-21 Mitsubishi Fuso Truck & Bus Corp Minute movement control device for vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4762213A (en) * 1986-01-30 1988-08-09 Mazda Motor Corporation Driving system for a four-wheel drive vehicle
US5170868A (en) * 1990-10-31 1992-12-15 Suzuki Motor Corporation Automatic starting clutch control method
JP2010503811A (en) * 2006-09-18 2010-02-04 ボルボ ラストバグナー アーベー Clutch protection method
JP2013036580A (en) * 2011-08-10 2013-02-21 Mitsubishi Fuso Truck & Bus Corp Minute movement control device for vehicle

Also Published As

Publication number Publication date
JPH0122495B2 (en) 1989-04-26

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