GB914674A - Improvements in or relating to electromagnetic clutch feeding circuits - Google Patents
Improvements in or relating to electromagnetic clutch feeding circuitsInfo
- Publication number
- GB914674A GB914674A GB1325560A GB1325560A GB914674A GB 914674 A GB914674 A GB 914674A GB 1325560 A GB1325560 A GB 1325560A GB 1325560 A GB1325560 A GB 1325560A GB 914674 A GB914674 A GB 914674A
- Authority
- GB
- United Kingdom
- Prior art keywords
- clutch
- switch
- generator
- voltage
- resistor
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/02—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for main transmission clutches
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
914,674. Clutch control. FRANCAISE DU FERODO S.A. April 13, 1960 [April 16, 1959], No. 13255/60. Class 80 (2). An electromagnetic clutch 10 for a motor vehicle is energized from a generator 11 which is distinct from the usual battery charging generator and has its field winding 43 excited in such a manner that the generator voltagespeed characteristic increases slowly at first and then moves rapidly up to a predetermined speed whereafter the voltage is regulated by voltage regulator means. As shown, the field winding 43 is excited partly from the battery B through an ignition switch C and resistors R4, R5, R1 and partly from the generator 11 itself through resistors R6, R5, R1, the resistor R1 being bridged by a switch 46 of the voltage regulator during speed-responsive clutch engagement. In second and higher ratios part or the whole of the resistors R4 and R6 are bridged by a switch 54 to provide more rapid clutch engagement. The voltage regulator switch 46 is operated by a relay 50, which is energized above a predetermined generator voltage to trip the switch 46 and insert the resistor R1 in series and a resistor R3 in parallel with the field winding 43. The regulated voltage may be adjusted by varying a resistor R2, and clutch wear may be compensated for by adjusting the resistor R5. The generator-fed clutch-engaging circuit provides automatic clutch release at engine idle, and includes an emergency switch 24 for connecting the clutch 10 to the battery B if the generator 11 fails; a declutching relay 39, 26 controlled from a gear shift lever switch 42; and a switch 25 which provides reduced battery energization of the clutch on closed throttle shift to prevent shocks and skidding on closed throttle downshift. The switch 25 is operated when an accelerator pedal position switch 37 is closed by a relay 30, sensitive to a voltage above the regulated voltage, which is energized by the surge voltage caused by opening the switch 26, so that on completion of gear shift the clutch is energized from the battery B through a resistor R. The value of the resistor R is chosen so that the clutch engagement during battery energization is approximately one-third of the maximum driving torque. The relay 30 has considerable hysteresis and retains the battery energization of the clutch until either the engine speed falls to idle or the switch 37 is opened. The nominal power of the generator is selected between 110 and 130% of the nominal power of the clutch and the apparent resistance of the generator constituted by its ohmic resistance and its armature reaction is selected to lie between 80 and 120% of the ohmic resistance of the clutch. The torque transmitted by the clutch at the regulator voltage may be three times the maximum engine torque. In Fig. 6 (not shown) the field winding 43 is excited solely by the generator 11 and an auxiliary field is provided by a permanent magnet. In Figs. 7 and 10 (not shown), the field winding of the generator 11 comprises two windings, one excited by the generator 11 itself and the other is excited by the battery B. In Figs. 8-10 (not shown), the switch 25 is omitted and the voltage regulator resistor R2 is formed in two parts, one of which is bridged during closed throttle shift to reduce the regulated voltage and thus the clutch energization. In Figs. 9 and 10 (not shown), the declutching relay 39 is omitted and replaced by a declutching gear shift lever switch in the generator field winding circuit.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR792224A FR1231824A (en) | 1959-04-16 | 1959-04-16 | Power supply circuit of an electromagnetic clutch |
Publications (1)
Publication Number | Publication Date |
---|---|
GB914674A true GB914674A (en) | 1963-01-02 |
Family
ID=8713710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1325560A Expired GB914674A (en) | 1959-04-16 | 1960-04-13 | Improvements in or relating to electromagnetic clutch feeding circuits |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1231824A (en) |
GB (1) | GB914674A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2486880A1 (en) * | 1980-07-16 | 1982-01-22 | Fuji Heavy Ind Ltd | CONTROL DEVICE FOR ELECTRO-MAGNETIC AUTOMOBILE CLUTCH |
-
1959
- 1959-04-16 FR FR792224A patent/FR1231824A/en not_active Expired
-
1960
- 1960-04-13 GB GB1325560A patent/GB914674A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2486880A1 (en) * | 1980-07-16 | 1982-01-22 | Fuji Heavy Ind Ltd | CONTROL DEVICE FOR ELECTRO-MAGNETIC AUTOMOBILE CLUTCH |
Also Published As
Publication number | Publication date |
---|---|
FR1231824A (en) | 1960-10-03 |
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