Foot controlling engine start, stop and brake system

• US 4,883,028 A
• Filed: 04/05/1988
• Issued: 11/28/1989
• Est. Priority Date: 04/05/1988
• Status: Expired due to Fees

• Current Assignee: WU's Agriculture Machinery Manufacturing Company Limited
• Original Assignee: WU's Agriculture Machinery Manufacturing Company Limited
• Inventors: Wu, Gerald P.
• Primary Examiner(s): Dolinar, Andrew M.
• Application Number:
  US07/177,996
• Time in Patent Office: 602 Days
• Field of Search: 123/179 B, 123/179 A, 123/198 DC, 123/179 BG, 290/37 A, 290/38 C, 290/38 E, 290/38 R
• US Class Current: 123/179.3
• CPC Class Codes: F02N 11/0818 Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
• CPC Class Codes: F02N 11/0848 with means for detecting successful engine start, e.g. to stop starter actuation
• CPC Class Codes: F02N 2200/0803 Parking brake state
• CPC Class Codes: F02N 2200/101 Accelerator pedal position
• CPC Class Codes: F02N 2200/102 Brake pedal position
• CPC Class Codes: Y02T 10/40 Engine management systems

Abstract

A foot controlling engine start, stop and brake system, characterized by a control circuit arranged among an ignition switch, a starter motor, a brake, an accelerator and a generator for controlling automatic stop of the starter motor by feeding back the output voltage of the generator or a frequency (engine speed) enable one to control the engines start, stop and brake by one'"'"'s foot.

Claims

1. A brake pedal activated engine controlling means comprising:

a control circuit associated with an ignition switch;

a starter motor;

a brake;

an accelerator;

and a generator for controlling the automatic stopping of said starter motor by feeding back the output voltage of said generator, said control circuit comprising an automatic and manual switch for automatically or manually controlling said starter motor and said engine;

a regulator for providing a regulated voltage by means of an IC1;

a trigger having an IC2 for effecting discharge-triggering by means of a first transistor and rendering an IC3 providing a first desirable voltage to control activation of said starter motor and, in turn, said engine, so that said generator outputs a second desirable voltage to said IC2 to make a second transistor non-conductive and therefore said starter motor cannot be activated by pushing said accelerator when said engine is in operation;

a timer for automatically stopping said starter motor within 3 seconds from triggering;

a feedback controller having a plurality of ICs for stopping said starter motor when said engine is shown by said second voltage picked up from said generator to be running; and

a stop circuit for grounding a stop wire, said stop circuit being activated by the application of pressure on said brake pedal so as to stop said engine and cut off power to said ICs.

2. A brake pedal activated engine controlling means comprising:

a control circuit associated with an ignition switch;

a starter motor;

a brake;

an accelerator; and

a generator for controlling the automatic stopping of said starter motor by feeding back the engine speed frequency, said control circuit comprising;

an automatic and manual switch for automatically and manually controlling said starter motor and said engine;

a regulator for providing a regulated voltage by means of an IC1;

a trigger having an IC2 for affecting discharge-triggering by means of a first transistor and rendering an IC3 providing a first desirable voltage to control the activation of said starter motor and, in turn, said engine, so that said generator outputs a second desirable voltage to said IC2 to make a second transistor non-conductive and therefore said starter motor cannot be activated by pushing on said accelerator when said engine is in operation;

a timer for automatically stopping said starter motor within 3 seconds from triggering;

a feedback controller having a plurality of ICs for stopping said starter motor when said engine is detected by feedback of engine speed frequency to be running; and

a stop circuit for grounding a stop wire when pressure is applied to said brake pedal so as to stop said engine and cut off power to said ICs.