Abstract

Disclosed is a complementary analog and digital method for controlling ignition of a gasoline engine. First, analog ignition is performed by means of an analog trigger circuit. After power has been steadily supplied to a microcontroller, the microcontroller disconnects the analog trigger circuit, starts to collect a digital trigger reference signal and turn on a digital trigger circuit, and switches to a digital signal to trigger ignition. Also disclosed is a complementary analog and digital system for controlling ignition of a gasoline engine.

IPC Classes  ?

• F02D 41/26 - Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
• F02P 3/08 - Layout of circuits
• F02D 28/00 - Programme-control of engines
• F02D 39/04 - Other non-electrical control for engines with other cycles than four-stroke, e.g. two-stroke
• F02D 41/24 - Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means

Abstract

Disclosed is a complementary analog and digital method for controlling ignition of a gasoline engine. First, analog ignition is performed by means of an analog trigger circuit. After power has been steadily supplied to a microcontroller, the microcontroller disconnects the analog trigger circuit, starts to collect a digital trigger reference signal and turn on a digital trigger circuit, and switches to a digital signal to trigger ignition. Also disclosed is a complementary analog and digital system for controlling ignition of a gasoline engine.

IPC Classes  ?

• F02P 5/145 - Advancing or retarding electric ignition sparkControl therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means

Abstract

The present invention discloses a device having communication with small gasoline engine igniter, comprising an igniter, a flameout switch and a communication device, and both the flameout switch and the communication device are connected to an igniter flameout port and an iron core of a reference ground. The unique voltage conversion circuit herein makes the signals at MUC sampling port more close to the required theoretical value, to ensure more stable and reliable communications. The design of key input and data display enables the communication device to be used alone without additional computers or other additional equipments, simple and convenient. On the basis of above igniter program, very simple circuit at extremely low costs is added, together with the MCU control program, the invention can have a single-wire bidirectional communication with an external device, so as to achieve operations of controlling MCU internal data of the igniter.

IPC Classes  ?

• F02P 3/08 - Layout of circuits
• F02P 9/00 - Electric spark ignition control, not otherwise provided for
• F02P 3/05 - Layout of circuits for control of the magnitude of the current in the ignition coil
• F02P 3/01 - Electric spark ignition installations without subsequent energy storage, i.e. energy supplied by an electrical oscillator
• F02B 63/02 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for hand-held tools
• F02P 1/00 - Installations having electric ignition energy generated by magneto- or dynamo-electric generators without subsequent storage
• F02P 1/08 - Layout of circuits

Abstract

A small gasoline engine igniter communication system, comprising an igniter (1), a flameout switch (3) and a communication apparatus (2), wherein both the flameout switch (3) and the communication apparatus (2) are connected onto a flameout port (9) and a reference ground iron core (5) of the igniter (1), the igniter (1) comprises: an igniter MCU control chip (U21) circuit, an igniter data input circuit (22), an igniter data output circuit (23) and an igniter charging and energy storage circuit (21), and the communication apparatus (2) comprises: a communication apparatus central control circuit, a control data receiving circuit (35), a control data output circuit (36), a display circuit (32), a key circuit (33), a voltage stabilizing circuit (34) and a power supply circuit (31). The communication system enables the communication apparatus (2) to be used independently, thereby being simpler and more portable, and more stable and reliable in communication work, and the communication system can perform single-wire two-way communication with an external equipment so as to read and modify data inside an MCU control chip (U21) of the igniter (1).

IPC Classes  ?

• F02P 3/04 - Layout of circuits