Control system for starting and stopping an internal combustion engine

Claim 2

A control system for stopping and starting an internal combustion engine provided with an ignition circuit and a starter motor, comprising: a starter circuit coupled to said starter motor for controlling operation of the starter motor to start the internal combustion engine; first operator actuated switch means for interrupting the ignition circuit to stop the internal combustion engine and for rendering said starter circuit capable of operation upon actuation thereof; second switch means connected to said starter circuit and responsive to the operating state of the internal combustion engine, said second switch means being inoperative when the internal combustion engine is running to disable said starter circuit and operative when the engine is stopped to enable said starter circuit; third operator actuated switch means connected to said starter circuit for closing said starter circuit and actuating said first switch means to close the ignition circuit upon actuation thereof to operate the starter motor and start the internal combustion engine, said second switch means being rendered inoperative when the internal combustion engine is started to terminate operation of the starter motor; and a time delay switch in said starter circuit rendered operative upon actuation of said first switch means to permit repetition of the starting operation during a predetermined time after actuation of said third switch means to close the ignition circuit.

Claim 3

The control system as defined in claim 1, wherein said second switch means comprises an oil-pressure controlled switch for interrupting said starter circuit when the engine is running.

Claim 4

The control system as defined in claim 1, wherein said first switch means is connected in circuit with an ignition coil in the ignition circuit.

Claim 5

The control system as defined in claim 1, wherein said second switch means is responsive to the speed of the engine.

Claim 6

The control system as defined in claim 1, wherein said first switch means is self-holding upon actuation thereof.

Claim 7

A control system for stopping and starting an internal combustion engine provided with an ignition circuit and a starter motor, comprising: a starter circuit coupled to said starter motor for controlling operation of the starter motor to start the internal combustion engine; first operator actuated switch means for interrupting the ignition circuit to stop the internal combustion engine and for rendering said starter circuit capable of operation upon actuation thereof; second switch means connected to said starter circuit and responsive to the operating state of the internal combustion engine, said second switch means being inoperative when the internal combustion engine is running to disable said starter circuit and operative when the engine is stopped to enable said starter circuit; and third operator actuated switch means connected to said starter circuit for closing said starter circuit and actuating said first switch means to close the ignition circuit upon actuation thereof to operate the starter motor and start the internal combustion engine, said second switch means being rendered inoperative when the internal combustion engine is started to terminate operation of the starter motor; said first switch means comprising a toggle switch having a first position in which the ignition circuit is closed and a second position in which the ignition circuit is open and a holding circuit rendered operable upon activation of said toggle switch to its second position to maintain said toggle switch in its second position, said holding circuit including a start switch having a first, normally closed position to complete said holding circuit, said start switch being operable to a second, open position to interrupt said holding circuit and allow said toggle switch to return to its first position to complete the ignition circuit, said third switch means being operable upon return of said toggle switch to its first position to actuate said starter circuit.

Claim 8

A control system for stopping and starting an internal combustion engine provided with an ignition circuit and a starter motor, comprising: a starter circuit coupled to said starter motor for controlling operation of the starter motor to start the internal combustion engine; first operator actuated switch means for interrupting the ignition circuit to stop the internal combustion engine and for rendering said starter circuit capable of operation upon actuation thereof; second switch means connected to said starter circuit and responsive to the operating state of the internal combustion engine, said second switch means being inoperative when the internal combustion engine is running to disable said starter circuit and operative when the engine is stopped to enable said starter circuit; and third operator actuated switch means connected to said starter circuit for closing said starter circuit and actuating said first switch means to close the ignition circuit upon actuation thereof to operate the starter motor and start the internal combustion engine, said second switch means being rendered inoperative when the internal combustion engine is started to terminate operation of the starter motor; said first switch means comprising a toggle switch having a first position in which the ignition circuit is closed and a second position in which the ignition circuit is open and a holding circuit rendered operable upon activation of said toggle switch to its second position to maintain said toggle switch in its second position, said holding circuit including a start switch having a first, normally closed position to complete said holding circuit, said start switch being operable to a second, open position to interrupt said holding circuit and allow said toggle switch to return to its first position to complete the ignition circuit, said third switch means being operable upon return of said toggle switch to its first position to actuate said starter circuit.

Claim 9

The control system as defined in claim 1, which includes a control coil connected between the output of said time delay switch and said second switch means for controlling the operation of an engine operated system.

Claim 10

The control system as defined in claim 6, which includes a time delay switch connected to said toggle switch and rendered operative upon actuation of said toggle switch to its second position, said time delay switch being operative for pre-determined time after return of said toggle switch to its first position to allow operation of said starter circuit.

Claim 11

The control system as defined in claim 8, wherein said third switch means comprises a relay switch having a normally open contact for controlling said starter circuit and a coil connected to said second switch means and rendered operative upon actuation of said time delay switch and return of said toggle switch to its first position to close said contact and actuate said starter circuit.

Claim 12

The control system as defined in claim 9, wherein said toggle switch comprises a double-pole reversing relay having a first contact connected to the ignition circuit with said toggle switch in its first position and connected to said time delay switch with said toggle switch in its second position and having a second contact connected between the output of said time delay switch and said coil of said start switch with said toggle switch in its first position and connected between the output of said time delay switch and said holding circuit for said toggle switch with said toggle switch in its second position.

Claim 13

The control system as defined in claim 8, which includes a control coil connected between the output of said time delay switch and said second switch means for controlling the operation of an engine operated system.

Claim 14

The control system as defined in claim 8, which includes indicator means connected to the output of said time delay switch.

Claim 15

The control system as defined in claim 6, wherein said start switch is operatively connected to an accelerator pedal of the engine.

Claim 16

The control system as defined in claim 1, wherein said first switch means is operatively connected to an engine brake.