TW394824B - An ignition system for motorcycle engine - Google Patents

Abstract

This is a kind of circuitry applicable for updating the controlling parameters of the ignition system used in a motorcycle remotely. It will allow the motorcycle ignition system to read the controlling parameters stored in the RAM at any desirable time in order to provide the motorcycle engine with the best ignition effect. It will allow the ignition system to have the best performance all the time. The controlling parameters stored in the RAM is readable by combining the maintenance service lines to read the ignition system's relative controlling parameters stored in a computer for maintenance service purpose. The relative controlling parameters are stored and updated accordingly; thus, it is applicable for synchronized control of the updated controlling parameters for the motorcycle's ignition system.

Description

V. Description of the invention (1) 1. Abstract One of the embodiments of this technology is a circuit system that can remotely update the control parameters of the ignition system of the locomotive engine, so that the ignition system of the locomotive engine can read the "random access memory" at any time. The control parameters in the "body" make the ignition system at the best function at any time and provide the best ignition efficiency of the locomotive engine. The control parameters in the "Random Access Memory" of this technology read the control parameters of the ignition system in the remote maintenance dedicated computer by means of maintenance connection, and then store or update them. It can achieve the function of synchronously updating the control parameters of the ignition system of the locomotive engine. 2. Background This technology uses the “Capacitor D ischarge Igniter (CDI)” of the locomotive as the ignition element as an example to illustrate that this technology can update the control parameters of the ignition system of the locomotive engine. Applications. Fig. 1 A. Know-how_AC ignition control system shows the know-how of the locomotive engine ignition control circuit, including locomotive magneto 10, trigger coil (PC) 11, battery (battery) 1 2. PC full wave Circuit 1 3. Analog comparison circuit 1 4. DC-DC boost circuit 1 5. Ignition trigger Q 1, CDI ignition module 1 7. High voltage ignition coil

Page 4 V. Description of the invention (2) '^ 18, Mars plug 19. When the locomotive engine rotates, the locomotive magnetic motor 10 will generate high-voltage AC waves. After rectifying the rectifier diode D 1, it will charge the high-voltage capacitor C 1. At the same time, the trigger coil 11 will also generate an AC trigger wave. Via the PC rectifying circuit 1 3 and then through the analog comparison circuit 14 to cause the ignition trigger switch Q 1 to generate a trigger signal, so that the high voltage capacitor C 1 is discharged through the ignition trigger switch Q 1 and is on the primary side of the high voltage ignition coil 18 A back electromotive force is generated, causing sparks on the secondary side of the spark plug 19. When the product manufacturer changes the setting of the ignition timing, the entire group of CDI ignition modules 17 must be discarded, and the analog comparison circuit 14 must be redesigned or adjusted, or even the magnetics of the locomotive must be reprocessed. The motor 10. Neither the mother plant of the locomotive production nor the end user can adjust the ignition timing setting of the locomotive engine. In order to overcome this inconvenience, this technology has developed a locomotive engine ignition system, which can diagnose and adjust the ignition timing setting of the locomotive engine through a special diagnostic device. Therefore, after using the locomotive engine of this technology, when the product is manufactured When the merchant has changed the setting of the ignition timing, it is not necessary to abandon the entire group of CDI ignition modules 17 and only need to adjust it with a dedicated diagnosis computer. The original locomotive engine ignition system can adapt to the new parameter environment. Fig. 1 B. Know-how-DC ignition control system

The difference from Figure 1A is that a DC-DC boost circuit 15 is added to the capacitor charging circuit, and the other circuits are the same as Figure 1A. Figure 2 A Known Skill _ Ignition Timing vs. Engine Speed

5. Description of the invention (3) " The traditional CDI ignition module 17 uses an analog comparison circuit. Due to the complexity of the comparison circuit, it can only achieve two-stage ignition timing, such as As shown in the figure, it cannot cope with the demand for complex locomotive engine performance. Figure 2B This technique _ ignition timing angle to engine speed diagram Because the operating range of locomotive engine speed is quite wide, different ignition timing angles are often required for different operating ranges, especially under partial load, it is necessary to provide timely ignition advance timing . For traditional analog ignition timing control, the two-stage ignition timing can only be limited by the need to set two operating modes, idle and full speed. This technology obtains the engine speed through the "PC wave capture control module" in the microprocessor control unit structure of the control system, and then through the "setting" and "calculation" of the firmware program, according to different engine performance requirements, An arbitrary engine ignition timing chart is planned. As shown in the figure, a multi-stage ignition timing can be achieved. The so-called "setting" refers to the position of the turning point (Break k P o int) of the engine speed on the horizontal axis; and the "calculation" result refers to the angle of ignition timing on the vertical axis. Nowadays, with the advancement of digital science and technology, the technology of processing complex arithmetic circuits with the microprocessor's firmware computing capabilities has become widespread. The artist in this case conceived and developed a technology with synchronously updated ignition timing parameters. The technology of this case utilizes the technology of current digital integration and network technology, which can update the ignition timing parameters of the locomotive engine at any time by remote and immediate updating.

V. Description of the invention (4) '' In order to achieve this purpose, the technology of this case is to integrate the ignition timing control system circuit into a microprocessor, and place the firmware and parameter table of the ignition timing control in the read-only memory. In read only memory (ROM), when the control system of the locomotive is activated, the ignition timing and control parameters in the read only memory can be searched and read automatically; or by random access memory (random access memory) memory, RAM) to read the ignition timing and control parameters, and the contents of this random access memory can be used at any time to obtain the latest information from the original factory, system supplier, or even engine testing peripheral equipment Version information. In this way, the engine ignition control system of the locomotive can use the synchronously updated engine ignition timing chart at any time while maintaining the best function. This system can be designed as follows: Through the simple setting of the user, the ignition control system of the locomotive can select different control parameters to control the ignition function of the locomotive engine. For example, when the gasoline used is converted from 9 5 without error to 9 8 without When it is wrong, the system can design a transfer switch in advance. After switching to gasoline, the user can continue to use the locomotive by simply flipping the switch. It is not necessary to replace the entire ignition system before using the original technology. locomotive. The system can also be connected to a remote maintenance computer to update the ignition timing chart and control parameters automatically, so that it is stored in a random access memory, so that the ignition system of the locomotive engine can keep the latest parameters and make use of the engine. Best effect. This technique is not as good as the traditional ignition timing control system.

Page 7 V. Description of the invention (5) The method of resistance and capacitance in the circuit of this device is to provide a smart ignition control system, which makes the ignition timing control system of locomotive suitable for various engine models. For the car department, as long as the maintenance-dedicated computer is used, automatic or manual updating is used to adjust the ignition timing setting value and control parameter value in the control system. Therefore, it is possible to dispense with the magnetic motor processing in the conventional technology. Different specifications, and inconvenience in the selection and maintenance of the complex and diverse ignition control system. 3. Brief description of the drawing Figure 1 A Known technology _ AC ignition control system Figure 1B Known technology _ DC ignition control system Figure 2A Known technology _ Relationship between ignition timing and engine speed Figure 2B This technology · _Ignition timing vs. engine speed Figure 3A of this technology.-AC ignition control system example 1 Figure 3B of this technology.-AC ignition control system Ά Example — Figure 4A of this technology. A DC ignition control System embodiment-Figure 4B of this technology.-Example of DC ignition control system-1-Figure 5 Architecture of microprocessor control system used in this technology-Figure 6 Architecture 2 of microprocessor control system used in this technology Figure 7 Architecture of the microprocessor control system used in this technology III. 4. Component number comparison table

Page 8 V. Invention description (6) 1 0 Locomotive magnetic motor 1 1 Trigger coil 12 Battery 1 3 PC full-wave circuit 14 Analog comparison circuit 1 5 DC-DC boost circuit 17 Capacitor discharge ignition module 1 6 Feedback Circuit 1 8 High voltage ignition coil 1 9 Mars plug 2 1 Microprocessor control unit 22 Portable diagnostic device 23 Power supply 2 4 Random access memory 2 5 Read-only memory 31 Central microcontroller 3 2 PC wave capture control mode Group 33 DC-DC boost control module 3 4 Full-duplex serial port 35 Programmable pulse width modulation 3 6 Environmental detection interface C1 High-voltage capacitor CDI Capacitor discharge igniter D 1 Rectifier diode

V. Description of the invention (7) Q1 ignition trigger switch 5. Detailed description of this technique Figure 3 A This technique-AC ignition control system embodiment 1 shows this microprocessor control unit 2 1 is set on the CD I ignition module The circuit system of the CDI ignition module 17 in i 7 includes: a power supply regulator 23, which is used to supply the power required by the control circuit in the CD I ignition module 丨 7. The microprocessor 21 is the central processing unit of the entire control circuit. After the power of the system circuit is turned on, the ignition timing chart is set by the read-only memory 25 and the random access memory 24. 'When necessary, micro-calculations ϊγ to ϊ; 22-type diagnostic equipment! Ignition timing chart: ^ ^ ^ Update the path of timing chart. In this way, the memory K i memory 24 is stored, and the ignition advance angle control parameters required for microprocessor control are provided at any time to update the locomotive bow in real time. Performance of locomotive engine. In this case, the parameters in the random access memory 24 are used first, and the winter 3; when the memory 24 is taken, the read-only memory 25 can be automatically selected; Figure 3B This technology-implementation of the AC ignition control system Example two. Compared with Figure 3A, the random access memory of the ignition timing circle is omitted.

Page 10 V. Description of the invention (8) 'body 2 4', the other circuits are the same; the microprocessor control unit 2 1 directly reads the information in the read-only memory 25, and sets the ignition timing control parameters of the locomotive engine . Figure 4 A This technology _ Example of DC ignition control system This figure shows this microprocessor control unit 2 1 is located in CD I ignition module 1 7 'The circuit system of CDI ignition module 17 includes: power regulator 23, used to supply the power required for the control circuit in the CDI ignition module 17. The microprocessor 2 1 'is the central processing unit of the entire control circuit. After the system circuit power is turned on', the ignition timing chart is set by the read-only memory 25, or ^ is randomly accessed by the ignition timing chart. Memory 2 4 settings; microprocessor control unit 21 and is responsible for connecting with portable diagnostic device 22; and band-type breaking device 2 2 can instantly change the ignition timing diagram and instruct the microprocessor control unit 21 to update Path of the ignition timing chart. In this way, the random access memory 24 of the "storage point_fire timing diagram" provides the latest ignition timing control parameters of the microprocessor control unit 21 at any time to update the ignition timing required by the locomotive engine in real time to obtain the most Excellent locomotive engine performance. In addition, this circuit is designed as a DC C I I ignition module, in which the control circuit of d C-DC boost circuit 15 is also determined by the firmware of microprocessor 21 in order to achieve the function of elastic adjustment. This technique is also designed with a hardware feedback circuit 16 ′ to protect the DC-DC boost circuit 15.

Page Π 5. Description of the invention (9) '· This design of the random access memory 2 4 which stores the ignition timing diagram can be "static random access memory" (SRAM), " "Dynamic random access memory (DRAM) ..." and other "volatile memory" (ν ο 1 ati 1 ememory). It can also be "flash memory" (π ash memory), "voltage clear memory" (EEPROM), or "serial voltage clear memory" memory (Seria 1 EPPR 0M) ... and other "non-volatile memory" Body j (non-volatile memory) 〇

When this technique is applied to an AC-type CD I ignition control system, because the boost circuit of the AC-type CD I ignition controller is provided by an external magnetic motor, there is no need for a DC-DC boost circuit 15, so 'as long as the control In the program, the “enable / disable” function in the control signal of the DC to DC boost circuit 15 in the DC CDI ignition control system can be applied to the “enable / disable” function. Figure 3 AC DI ignition control system. Figure 4B This technology _ DC ignition control system embodiment two

This design is compared with FIG. 4A. In the figure, the CDI ignition module 17 is shown, and the design of the random access memory 2 4 for storing the ignition timing diagram is omitted. The microprocessor control unit 2 1 directly reads the read-only memory 2 The information in 5 sets the ignition timing control parameters of the locomotive engine. ° B

Page 12 V. Driving instructions (1ϋ) Through a remote connection to the network, on a personal computer or portable device 22: It is easy to monitor the ignition of the internal combustion engine in real time [time 'can also assist engine development engineers to understand the bow丨 Engine operation: state.

This technique is applied to AC CDI ignition control system because AC CDI point: 点: Pressure: The circuit is provided by an external magnetic motor, and there is no tearing. \ As long as the control body program, the DC ^ Ί After the DC signal of the DC-DC boost circuit 15 is set to γπΓΛ in the enable / disable function, it can be applied to the AC CDI ignition control system in Figure 3-8. . Figure 5 The architecture of the microprocessor control system used in this technology. The device used in this technology is shown. 3 1 is connected to the PC wave capture control trigger switch Q 1 DC-DC boost control module of the execution switch. 33 Capacitor C1 The central micro-controller 31 is also connected so that it can also be connected to the read-only parameter with the remote micro-controller 31. This technique is based on Quan Shuangming only. Other ports include the technique of this case: "Parallel microprocessor control, including: central micro-control module 3 2 'promote ignition under certain conditions; central micro-controller 3 丨 also Connected to 'Control DC boost for charging high-voltage electricity connected to full-duplex serial port 34, to communicate with the provided portable diagnostic device 22. Central' S has memory 2 5 and access to read-only memory 2 The serial port 34 in 5 is used as a port but it is not limited to the following. It can also be used for conversion "(parallel p0rt), rs_232,

V. Description of the invention (11) RS-458, GPIB, IEEE1394 (Firmware), "Universal φ port j (universal serial bus, USB)," Small computer system interface (SCSI) 'or "Ethernet" ... etc. In the design including the random access memory 24, the central microcontroller 31 is also connected to the random access memory 24, and the central microcontroller 3 preferentially fetches the parameters in the random access memory 24 for operation. This technique can also be designed as follows: When the = access memory 24 fails, the central micro-controller 3 丨 automatically fetches the parameters in the read-only memory 25 to operate. … Figure 6 Architecture 2 of the microprocessor control system used in this technique. The design is to design the read-only memory 25 in Figure 5 in the micro-processor control early stage 21, so it can be omitted-an independent Of components. Fig. 7 The three plans of the architecture of the microprocessor control system used in this technology indicate that the microprocessor control unit 21 adds the fading detection interface 36, and adds various functions of control and control in the microprocessor control. Charge = automatic pain measurement and automatic control function of the processor control unit 21. ] Using the micro-knowledge technique, there is also the technique of using a full crystal igniter as an ignition element.

Page 14 V. Description of the invention (12) '1 The same function can be achieved by the same technique. This technique can be easily transferred and applied to this similar structure, which is also the scope of rights of the right holder in this case. This technique is described using the above-mentioned example of implementation, however, the example of implementation is merely for convenience of description, and is not intended to limit the rights of the right holder to this example. Anyone who implements this technology in an equal design manner familiar to those skilled in the art, as long as it does not depart from the essential spirit of this technology, is the scope of rights of the right holder in this case. All the scope defined by equal skill and the scope of patent application below are the scope of rights of the right holder of this case.

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Claims (1)

6. Scope of patent application 1. An ignition system of a locomotive engine includes: an ignition trigger switch that generates an ignition function for the aforementioned locomotive engine; a read-only memory storing the ignition timing diagram and control parameters required by the aforementioned locomotive engine; And a microprocessor control unit connected to the aforementioned ignition trigger switch; and connected to the aforementioned read-only memory; controlling the aforementioned ignition trigger switch to perform an ignition function based on the information in the aforementioned read-only memory; having a port for providing Connect to external diagnostic equipment. 2. The ignition system of a locomotive engine as described in item 1 of the scope of patent application, further comprising: a random access memory connected to the aforementioned microprocessor control unit for storing the ignition system control required by the aforementioned locomotive engine Parameters; and can read the parameter information in the aforementioned external diagnostic device, update and store the aforementioned ignition system control parameters. 3. The ignition system of a locomotive engine according to item 2 of the scope of patent application, wherein the aforementioned microprocessor control unit is set to preferentially use the control parameters in the aforementioned random access memory; the aforementioned random access memory In the event of a physical failure, the aforementioned control parameters in the read-only memory are automatically used. 4. The ignition system of a locomotive engine as described in item 1 of the scope of patent application Page 16 6. The scope of the patent application system further includes: a DC-DC boost circuit connected between the DC power supply element and the high-voltage ignition coil to provide the DC boost function required by the DC ignition device; and connected to the foregoing The microprocessor control unit performs a DC boost function according to the control of the aforementioned microprocessor control unit. 5. The ignition system of a locomotive engine as described in item 2 of the scope of the patent application, which also includes a DC-DC boost circuit, which is connected between the DC power supply element and the high-voltage ignition coil to provide a DC ignition device. Required DC boost function; and is connected to the aforementioned microprocessor control unit and performs a DC boost function according to the control of the aforementioned microprocessor control unit. 6. The ignition system of a locomotive engine according to item 4 or item 5 of the scope of patent application, wherein the aforementioned microprocessor control unit further includes: an enabling / disabling function for enabling or disabling the aforementioned DC-DC boost circuit. 7. The ignition system of a locomotive engine according to item 2 of the scope of the patent application, wherein the random access memory refers to volatile memory. 6. Scope of patent application 8. The ignition system of a locomotive engine as described in item 7 of the scope of patent application, wherein the volatile memory refers to: static random access memory or dynamic random access memory body. 9. The ignition system of a locomotive engine according to item 2 of the scope of patent application, wherein the random access memory refers to non-volatile memory. 10 · The ignition system of a locomotive engine as described in item 9 of the scope of the patent application, wherein the non-volatile memory refers to: flash memory, voltage clear memory, or series voltage clear memory . 11. A microprocessor control unit for providing the ignition system of a locomotive engine, comprising: a central microcontroller that controls the operation of the aforementioned microprocessor control unit; a PC wave acquisition control module connected to the aforementioned The central micro-controller detects and presents the PC wave information to the aforementioned central micro-controller; DC — DC boost control module, connected to the aforementioned central micro-controller, and executes according to the command of the aforementioned central micro-controller DC boost function; and a port connected to the aforementioned central microcontroller, providing a connection function for external diagnostic equipment. 1 2. The microprocessor control unit according to item 11 in the scope of patent application, wherein the port is selected from one of the following groups: Page 18 Page 19