CN112709656A - Idling start-stop system for motorcycle and control method thereof - Google Patents
Idling start-stop system for motorcycle and control method thereof Download PDFInfo
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- CN112709656A CN112709656A CN202110154810.2A CN202110154810A CN112709656A CN 112709656 A CN112709656 A CN 112709656A CN 202110154810 A CN202110154810 A CN 202110154810A CN 112709656 A CN112709656 A CN 112709656A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P1/00—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D37/00—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for
- F02D37/02—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for one of the functions being ignition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention relates to an idling start-stop system for a motorcycle and a control method thereof, relating to the technical field of motorcycles, the invention integrates the function of a starting motor into a magneto to form a two-in-one magneto (103) by canceling the traditional motorcycle starting motor, an ECU (105) collects an engine cylinder temperature signal of an engine cylinder temperature sensor (107), an engine rotating speed signal of a rotating speed pulse signal sensor (108), a vehicle speed signal of a rear wheel axle rotating speed sensor (108) and other vehicle signals, the ECU detects the switch state of a flameout switch (118) and the working state of an ignition switch (119), meanwhile, the communication information of the integrated machine controller (102) is referred to, so that the accurate control of the fuel injection signal of the engine fuel injector (115) and the ignition signal of the ignition coil (116) is realized, and the starting or stopping of the engine is completed.
Description
Technical Field
The invention relates to the technical field of motorcycles, in particular to an idling start-stop system for a motorcycle and a control method thereof.
Background
As is known, with the increasing environmental protection pressure in the development of economic society, the requirements for energy conservation and emission reduction of motorcycle products are higher and higher, and various new technologies are continuously proposed and applied to reduce the fuel consumption of motorcycles and improve the fuel economy of motorcycles, wherein the application of the idling start-stop technology to motorcycles can effectively reduce the fuel consumption of motorcycles and improve the fuel economy of motorcycles.
The inventor finds, through retrieval and analysis, that a related technical document is introduced for research on an idle start-stop technology, and specifically the following steps are included:
the patent relates to a Chinese patent, a patent number 201710109440.4, a patent application date of 2017, 02 and 27 days, a publication number CN106677947A, a publication date of 2017, 05 and 17 days, and the name of the patent is a starting and power generating integrated control system and a control method for idling start and stop of a motorcycle.
The Chinese patent is 201910986170.4, the patent application date is 10 and 17 in 2019, the publication number is CN110761910A, the publication date is 02 and 07 in 2020, and the patent name is an engine control system. The control system is applied by combining an idling start-stop technology, when the ISG controller detects that the engine rotates reversely, a signal is sent to the first controller, the first controller controls the oil sprayer to stop oil injection, and meanwhile, the ignition coil stops ignition, so that the oil consumption of the engine can be saved, and the use safety of a motor vehicle is improved.
The patent mainly introduces a motorcycle two-in-one controller capable of realizing an idling start-stop function and an intelligent charging technology, and comprises an internal basic structure and a peripheral structure.
The patent is a Chinese patent with the patent number 201880021424.2, the patent application date is 2018, 03 and 28 days, the publication number is CN110462185A, the publication date is 2019, 11 and 15 days, and the patent name is a two-wheel vehicle idling start-stop system. The idle stop condition does not consider battery power information, and a risk that the vehicle cannot be started after idling may occur.
Aiming at the differences of the introduction focuses of the idle speed start-stop system and the defects of the control method, the technical personnel in the field need to provide the idle speed start-stop system for the motorcycle and the control method thereof urgently, so as to overcome the technical defects and further meet the requirements of environmental protection and the like.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an idling start-stop system for a motorcycle and a control method thereof, the invention integrates the function of a starting motor into a magneto to form a two-in-one magneto by canceling the traditional motorcycle starting motor, an ECU acquires signals related to the opening of an accelerator, the temperature of an engine cylinder, the rotating speed of an engine, the speed of the vehicle, a power supply of an ignition switch, the state and control function of a flameout switch and the running state of the engine, and simultaneously combines the communication information with an all-in-one machine controller to realize the accurate control of oil injection and ignition signals of the engine during starting, idling stop and idling restart through internal logic judgment.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an idling start-stop system for a motorcycle comprises a storage battery, an all-in-one machine controller, a two-in-one magneto, an engine and an ECU, the two-in-one magneto is integrated with a rotating speed pulse signal sensor and a Hall sensor, the rotor of the two-in-one magneto is arranged on the crankshaft of the engine, the two-in-one magneto is connected with an integrated machine controller, the integrated machine controller is respectively connected with a storage battery, an ECU, an idle speed start-stop switch, a brake signal, an instrument indicator light, a flameout switch and a starting switch, the ECU is respectively connected with an engine cylinder temperature sensor, a rotating speed pulse signal sensor, a rear wheel shaft rotating speed sensor, a flameout switch, an ignition switch and an ignition coil on the engine, the engine is respectively provided with an oil sprayer, an ignition coil and an accelerator opening sensor, the accelerator opening sensor is connected with an accelerator rotating handle, and the ignition switch is connected with a storage battery to form the idling start-stop system for the motorcycle.
The idling start-stop system for the motorcycle is characterized in that the all-in-one machine controller is connected with an ECU through CAN communication.
The idling start-stop system for the motorcycle is characterized in that the two-in-one magnetic motor is a magnetic motor integrating the function of a starting motor.
The idling start-stop system for the motorcycle is characterized in that the all-in-one machine controller and the ECU are integrated to form the whole vehicle controller.
A control method for an idling start-stop system of a motorcycle comprises an idling start-stop function mode starting method, an idling start-stop mode stopping method, an idling start-stop mode restart method after stopping, an idling start-stop mode exit method and an idling start-stop function signal indication method, wherein a controller of an all-in-one machine and an ECU (electronic control unit) are connected through a CAN (controller area network) communication network to realize connection of various signals and control instructions, the signals comprise starting instructions, stopping instructions and parameter information of a related sensor of the whole motorcycle, the ECU acquires signals related to the opening degree of an accelerator, the temperature of an engine cylinder, the rotating speed of the engine, the speed of the vehicle, an ignition switch power supply, the state of a, meanwhile, by combining with the communication information of the all-in-one machine controller and through internal logic judgment, the accurate control of the fuel injection and ignition signals of the engine during starting, idling stop and idling restart is realized.
The control method of the idling start-stop system for the motorcycle is characterized in that when an engine normally runs and an idling start-stop switch is in an on condition, an all-in-one controller periodically detects the speed of the whole motorcycle, the temperature of an engine cylinder, the opening degree of an accelerator and the electric quantity of a storage battery, when the detected speed of the whole motorcycle is larger than a first preset speed, the temperature of the engine cylinder is larger than the first preset temperature, the opening degree of the accelerator is larger than the first preset opening degree, and the condition that the electric quantity of the storage battery is larger than the first preset electric quantity is met, the all-in-one controller enters the idling start-stop function mode, an indicator lamp of an instrument is controlled to be normally on to indicate, if the idling start-stop switch is turned off in the state, the all-in-one controller exits the idling start-stop work mode, the indicator.
The control method of the idling start-stop mode shutdown system for the motorcycle is characterized in that after the idling start-stop function mode is started, the all-in-one machine controller periodically and continuously detects vehicle speed, accelerator opening and engine rotating speed parameter information, when the detected vehicle speed is smaller than a second preset vehicle speed, the engine rotating speed is smaller than a first preset rotating speed, the accelerator opening is smaller than a second preset opening, the all-in-one machine controller triggers the idling start-stop mode shutdown function and sends a shutdown request to the ECU, the ECU realizes the shutdown of the engine by cutting off an engine oil injection and ignition signal, and simultaneously returns an execution state instruction to the all-in-one machine controller, the all-in-one machine controller calls an idling stop position finding method, and after the shutdown is completed, the instrument indicator lights are controlled to flash and indicate.
The control method for the idling start-stop system of the motorcycle is characterized in that the restarting method after the idling start-stop mode is stopped is that under the stop state after the idling start-stop mode is started, the all-in-one machine controller periodically detects the states of an idling start-stop switch or a flameout switch, if any switch is switched off, the idling start-stop working mode is quitted, if the idling start-stop switch and the flameout switch are both kept in the closed state, the all-in-one machine controller periodically detects an accelerator opening signal, if the accelerator opening is larger than a third preset opening, the all-in-one machine controller detects whether a brake signal is true, the two-in-one magneto is controlled to be in rotating fit with the ECU to control the engine to be started, if the brake signal is detected to be false, the restarting instruction is not responded, and the all-in.
The control method of the idling start-stop system for the motorcycle is characterized in that in an idling start-stop mode exit method, an all-in-one machine controller periodically detects whether an idling start-stop switch or a flameout switch is closed or not in an idling start-stop state, exits an idling start-stop function mode if any switch is closed, periodically detects the electric quantity of a storage battery and the temperature of a cylinder body if the idling start-stop switch and the flameout switch are both in an open state, continuously accumulates idling stop time, exits the idling start-stop function mode if the idling stop time is longer than a second preset time, simultaneously controls an instrument indicator lamp to be turned off, stays in a third preset time interval when the stop time is shorter than the second preset time, and continuously detects that the electric quantity of the storage battery is shorter than the second preset electric quantity or the temperature of the cylinder body is shorter than the second preset temperature, and exiting the idling start-stop function mode, and simultaneously controlling the instrument indicator lamp to be turned off by the integrated machine controller.
According to the control method for the idling start-stop system of the motorcycle, the idling start-stop function signal indicating method is that the all-in-one machine controller is in a non-idling start-stop working state, the instrument indicating lamp is turned off, the all-in-one machine controller enters an idling start-stop working mode, the instrument indicating lamp is normally on, the all-in-one machine controller is in an idling mode stop waiting state, and the instrument indicating lamp is turned on.
The control method for the idling start-stop system of the motorcycle is characterized in that an all-in-one machine controller calls an idling stop position finding method when the idling start-stop mode stops, and comprises a method for judging the exhaust stroke top dead center position and the compression stroke top dead center position of a four-stroke engine, namely the all-in-one machine controller calculates the rotating speed variation delta Rpm1 and delta Rpm2 when the engine passes through the top dead center position through Hall signals, if delta Rpm1 is smaller than delta Rpm2, the variation delta Rpm1 is judged to correspond to the top dead center as the exhaust stroke top dead center position, and the variation delta Rpm2 is judged to correspond to the top dead center as the compression stroke top dead center position.
The control method for the idling start-stop system of the motorcycle is characterized in that an all-in-one machine controller calls an idling stop position finding method when the idling start-stop mode is stopped, the method comprises a position finding method of reversing from the top dead center of an exhaust stroke and a position finding method of reversing from the top dead center of a compression stroke, the stop position after the reversing is positioned in the angle range from beta 1 to beta 2 after the position of the start of the exhaust stroke (the crank rotation angle is 180 degrees), and the angle range from beta 1 to beta 2 is 5 degrees < beta 1 < 10 degrees, and 70 degrees < beta 2 < 90 degrees.
By adopting the technical scheme, the invention has the following advantages:
the invention cancels the traditional motorcycle starting motor, integrates the starting motor function into the magnetic motor to form a two-in-one magnetic motor, the ECU collects the whole vehicle signals such as an engine cylinder temperature signal of an engine cylinder temperature sensor, an engine rotating speed signal of a rotating speed pulse signal sensor, a vehicle speed signal of a rear wheel shaft rotating speed sensor and the like, the ECU detects the switching state of a flameout switch and the working state of an ignition switch, and meanwhile, the ECU refers to the communication information with an all-in-one machine controller to realize the accurate control of the fuel injection signal of an engine fuel injector and the ignition signal of an ignition coil and complete the starting or stopping of the engine.
Drawings
FIG. 1 is a block diagram of an idle start/stop system of a motorcycle according to the present invention;
FIG. 2 illustrates an idle start stop function mode enablement method of the present invention;
FIG. 3 illustrates a method of shutdown after an idle start-stop function mode is enabled in accordance with the present invention;
FIG. 4 illustrates a method for restarting the idle start-stop mode after the idle start-stop mode is started and stopped according to the present invention;
FIG. 5 illustrates a method for exiting after shutdown in an idle start-stop functional mode according to the present invention;
FIG. 6 illustrates a method for turning on an idle start/stop function indicator according to the present invention;
FIG. 7 is a diagram of an idle start stop mode shutdown position finding method (valve lift-crankshaft angle curve) in accordance with the present invention;
FIG. 8 illustrates an idle stop-start mode stop position finding method (determining top dead center A and top dead center B) in accordance with the present invention;
FIG. 9 illustrates an idle start stop mode stop position finding method (reverse position finding method) in accordance with the present invention;
FIG. 10 is a flowchart of an idle start stop mode stop and position finding method of the present invention;
FIG. 11 is a flowchart illustrating the control of the idle start/stop system according to the present invention;
FIG. 12 is a second control flow chart of the idle start/stop system according to the present invention;
in the figure: 101. a storage battery; 102. an all-in-one machine controller; 103. a two-in-one magneto; 104. an engine; 105. an ECU; 106. the throttle is rotated to handle; 107. an engine cylinder temperature sensor; 108. a rotational speed pulse signal sensor; 109. a rear wheel axle speed sensor; 110. a crankshaft; 111. a Hall sensor; 112. an idle start-stop switch; 113. a braking signal; 114. an instrument indicator light; 115. an oil injector; 116. an ignition coil; 117. an accelerator opening sensor; 118. a flameout switch; 119. an ignition switch; 120. the switch is activated.
Detailed Description
The present invention will be explained in more detail by the following examples, which are not intended to limit the invention;
the invention relates to an idling start-stop system for a motorcycle, which is described by combining with attached figures 1-12 and comprises a storage battery 101, an all-in-one controller 102, a two-in-one magneto 103, an engine 104 and an ECU105, wherein as shown in figure 1, the two-in-one magneto 103 is a magneto integrating the function of starting the motor, a rotating speed pulse signal sensor 108 and a Hall sensor 111 are integrated in the two-in-one magneto 103, the Hall sensor 111 is used for providing three-phase voltage phase information and engine compression stroke top dead center position information for realizing the accurate control of the two-in-one magneto 103 for the all-in-one controller 102, and the rotating speed pulse signal sensor 108 indirectly measures an engine rotating speed signal by detecting the rotating speed of the two. The rotor of the two-in-one magneto 103 is arranged on a crankshaft 110 of the engine 104, the two-in-one magneto 103 is connected with the all-in-one controller 102, the all-in-one controller 102 is respectively connected with the storage battery 101, the ECU105, the idle speed start-stop switch 112, the brake signal 113, the instrument indicator lamp 114, the flameout switch 118 and the starting switch 120, when the engine 104 is started, the all-in-one controller 102 controls the two-in-one magneto 103 to work as the starting motor by using the electric quantity of the storage battery 101, when the engine 104 normally works, the all-in-one controller 102 works as a voltage regulating rectifier to charge the storage battery 101, and meanwhile, the electric energy; the integrated machine controller 102 is connected with the ECU105 through CAN communication to realize the connection of various signals and control instructions, including starting instructions, stopping instructions and parameter information of related sensors of the whole vehicle; the ECU105 is respectively connected with an engine cylinder temperature sensor 107, a rotating speed pulse signal sensor 108, a rear wheel axle rotating speed sensor 109, a flameout switch 118, an ignition switch 119 and an ignition coil 116 on the engine 104, the engine 104 is respectively provided with an oil injector 115, the ignition coil 116 and an accelerator opening sensor 117, the accelerator opening sensor 117 is connected with an accelerator rotating handle 106, the ignition switch 119 is connected with a storage battery 101, the ECU105 collects the opening information of the accelerator rotating handle 106 through the accelerator opening sensor 117 assembled on the engine 104, the ECU105 collects the engine cylinder temperature signal of the engine cylinder temperature sensor 107, the rotating speed pulse signal sensor 108 is used for generating an engine rotating speed signal, the rear wheel axle rotating speed sensor 109 is used for generating a vehicle speed signal, the ECU105 detects the switching state of the flameout switch 118 and the working state of the ignition switch 119, and meanwhile, the communication information with the all-in-, the ignition signal of the ignition coil 116 is accurately controlled to complete the starting or stopping of the engine to form the idling starting and stopping system for the motorcycle.
In specific implementation, in order to realize the bidirectional transmission of energy between the two-in-one magnetic motor 103 and the storage battery 101, the all-in-one controller 102 is introduced, when the engine 104 is started, the all-in-one controller 102 controls the two-in-one magnetic motor 103 to work as a starting motor, and when the engine works normally, the all-in-one controller 102 works as a voltage regulating rectifier to charge the storage battery 101 and provide electric energy for related loads of the whole vehicle. The all-in-one machine controller 102 is connected with a start switch 120 for detecting an electric start signal. The all-in-one controller 102 is connected with an idle start-stop switch 112 for controlling the manual on-off of the idle start-stop function. The integrated machine controller 102 is connected to a brake signal 113 as a safety determination condition for restart after idle stop. The all-in-one machine controller 102 is connected with a flameout switch 118 for manually controlling flameout of the engine and quitting of the idle start-stop state. The all-in-one machine controller 102 is connected with an instrument indicator lamp 114 for indicating the current function state of the idle start-stop function. The connection of various signals and control instructions, including a start instruction, a stop instruction, and the parameter information of the sensors related to the whole vehicle, is realized between the all-in-one machine controller 102 and the ECU105 through a CAN communication network. The ECU105 collects signals related to control functions and engine running states such as accelerator opening, engine cylinder temperature, engine rotating speed, vehicle speed, ignition switch power supply, flameout switch state and the like, and meanwhile, the signals are communicated with the all-in-one machine controller 102, and accurate control of oil injection and ignition signals of the engine during starting, idling stop and idling restart is achieved through internal logic judgment.
Further, as an extension of the structure of the present invention, the ECU105 and the all-in-one machine controller 102 may be integrated into a whole vehicle controller in a specific implementation. The vehicle control unit integrates all functions of the ECU105 and the all-in-one machine controller 102, and meanwhile, the structure of the vehicle system can be adjusted correspondingly. The adjusted system structure also falls into the protection scope of the invention.
A control method for an idling start-stop system of a motorcycle comprises an idling start-stop function mode starting method, an idling start-stop mode stopping method, an idling start-stop mode restarting method after stopping, an idling start-stop mode quitting method and an idling start-stop function signal indicating method, wherein connection of various signals and control instructions is realized between an integrated controller 102 and an ECU105 through a CAN communication network, the connection comprises a starting instruction, a stopping instruction and parameter information of a related sensor of the whole motorcycle, the ECU105 collects signals related to an accelerator opening, an engine cylinder temperature, an engine rotating speed, a vehicle speed, an ignition switch power supply, a flameout switch state, a control function and an engine running state, meanwhile, by combining with the communication information of the all-in-one machine controller 102 and through internal logic judgment, the accurate control of the fuel injection and ignition signals of the engine during starting, idling stop and idling restart is realized.
The starting method of the idling start-stop function mode comprises the steps that when an engine 104 normally runs and an idling start-stop switch 112 is in an open condition, an all-in-one machine controller 102 periodically detects the speed of a whole vehicle, the temperature of an engine cylinder, the opening degree of an accelerator and the electric quantity parameter of a storage battery 101, when the detected speed of the whole vehicle is larger than a first preset speed, the temperature of the engine cylinder is larger than a first preset temperature, the opening degree of the accelerator is larger than a first preset opening degree, and the condition that the electric quantity of the storage battery 101 is larger than the first preset electric quantity is met, the all-in-one machine controller 102 enters the idling start-stop function mode, the all-in-one machine controller 102 controls an instrument indicator lamp to be normally on for indicating, if the idling start-stop switch 112 is turned off in the state. In specific implementation, as shown in fig. 2, at Step1, the engine 104 is in a start-up operation state, and the idle start-stop switch 112 is in an open state. In Step2, the all-in-one machine controller 102 periodically (generally, the period time is more than 10ms and less than Tz1 and less than 500 ms) detects whether the vehicle speed V is more than a first preset vehicle speed V1 (generally, 5km/h and less than V1 and less than 20 km/h), whether the engine cylinder temperature T is more than a first preset temperature T1 (generally, 50 ℃ and less than T1 and less than 80 ℃) and whether the accelerator opening Tp is more than a first preset opening Tp1 (generally, the accelerator opening Tp1 corresponds to an accelerator handle angle which is more than 4 degrees, the corresponding angles of the accelerator opening are converted accelerator handle angles), and whether the storage battery electric quantity Bc is more than a first preset electric quantity Bc1 (generally, 70% Bm and less than Bc1 and less than 90% Bm are maximum storage battery charge quantities). If the above conditions are simultaneously met, the all-in-one machine controller 102 enters an idle start/stop working mode, and meanwhile, the all-in-one machine controller 102 controls the instrument idle start/stop indicator lamp 114 to be on for prompting.
As a modification of the above method, the judgment condition may be simply adjusted, such as detecting only one or a combination of the vehicle speed, the engine cylinder temperature, the accelerator opening degree, and the battery charge. Meanwhile, the throttle opening degree signal can be replaced by a throttle opening degree rotation proportion signal. Such that appropriate modification of such parameters is within the scope of the present invention.
After the idling start-stop function mode is started, the all-in-one machine controller 102 periodically and continuously detects the vehicle speed, the accelerator opening and the parameter information of the rotating speed of the engine 104, when the detected vehicle speed is less than a second preset vehicle speed, the rotating speed of the engine 104 is less than a first preset rotating speed, and the accelerator opening is less than a second preset opening, when the detected vehicle speed, the rotating speed of the engine 104 and the rotating speed of the accelerator are simultaneously met and the duration time is more than a first preset time, the all-in-one machine controller 102 triggers the idling start-stop mode stop function, a stop request is sent to the ECU105, the ECU105 realizes the stop of the engine 104 by cutting off the oil injection and ignition signals of the engine 104, and simultaneously returns an execution state instruction to the all-in-one machine controller 102, the all-in-. In the concrete implementation, as shown in fig. 3, in Step1, the engine 104 is in a normal operation state, and the all-in-one machine controller 102 is in an idle start-stop function mode, in Step2, the all-in-one machine controller 102 periodically (generally, the cycle time is 10ms < Tz2 < 500 ms) detects parameters such as the vehicle speed V, the accelerator opening Tp, the engine speed Rpm and the like, when the detected vehicle speed V is less than a second preset vehicle speed V2 (generally, V2 < 2 km/h), the engine speed Rpm is less than a first preset rotation speed Rpm1 (generally, 1000Rpm < Rpm1 < 1600 Rpm), the accelerator opening Tp is less than a second preset opening Tp2 (generally, Tp2 < 3 °), the three conditions are simultaneously satisfied, and the duration is greater than a first preset time Δ T1 (generally, 1s < T1 < 10 Δ s), the idle speed controller 102 triggers the start-stop ECU function and sends a stop command to the idle stop command 105, the ECU105 controls the injector 115 and the ignition coil 116 to cut off the injection and ignition signals. While the kiosk controller 102 invokes the stop find position method. After the shutdown is completed, the all-in-one machine controller 102 controls the instrument idle start/stop indicator lamp 114 to flash for prompting.
The method for restarting the integrated machine after the idling start-stop mode is characterized in that in a stop state after the idling start-stop mode is started, the integrated machine controller 102 periodically detects the states of the idling start-stop switch 112 or the flameout switch 118, if any one switch is disconnected, the idling start-stop working mode is exited, if the idling start-stop switch 112 and the flameout switch 118 are both kept in a closed state, the integrated machine controller 102 periodically detects an accelerator opening signal, if the accelerator opening is larger than a third preset opening, the integrated machine controller 102 detects whether a brake signal is true, the two-in-one magneto 103 is controlled to be in rotary fit with the ECU105 to control the engine 104 to start, if the brake signal is false, a restart instruction is not responded, and the integrated machine controller 102 controls the indicator lamp to be in a light-on state to be correspondingly adjusted after executing the. In specific implementation, as shown in fig. 4, in a shutdown state after the idle start-stop mode is enabled, in Step1, the all-in-one machine controller 102 periodically (generally, the cycle time is 10ms < Tz3 < 500 ms) detects whether the idle start-stop switch 112 and the flameout switch 118 are in an on state, and if any one of the switches is in an off state, the idle start-stop mode is exited, and the instrument indicator 114 is controlled to be turned off. If the idle start-stop switch 112 and the stop switch 118 are both in the on state, the operation goes to Step2, in Step2, the all-in-one controller 102 periodically (typically, the cycle time is 10ms < Tz4 < 500 ms) detects the accelerator opening Tp, and if the accelerator opening Tp is larger than the third preset opening Tp3 (typically, Tp3 > 5 °), the operation goes to Step3, and if the accelerator opening Tp is smaller than the third preset opening Tp3, the detection is continued. In step3, the all-in-one controller 102 detects whether the brake signal (CVT vehicle type) of the brake switch 113 is true, and if the signal is true, controls the two-in-one magnetor 103 to rotate and start, and sends a start signal to the ECU 105. After the starting is finished, the indicator lamp of the control instrument is switched to be normally on for indication. And if the detected brake signal is false, the restart instruction is not responded, and the state of the detected brake signal is returned. As for the simplification of the restarting strategy after the idling start-stop mode is stopped, the braking signal 113 can not be judged according to the actual design requirement, and only the accelerator opening Tp is taken as the only judgment standard. For a vehicle with gears and clutches, the brake signal can be adjusted to be the clutch signal.
The method for exiting the idle start-stop mode is that in the idle start-stop state, the all-in-one machine controller 102 periodically detects whether the idle start-stop switch 112 or the flameout switch 118 is turned off, if any one of the switches is turned off, the idle start-stop functional mode is exited, if both the idle start-stop switch 112 and the flameout switch 118 are turned on, the electric quantity of the storage battery 101 and the temperature of the cylinder body are periodically detected, the idle stop time is continuously accumulated, if the idle stop time is longer than a second preset time, the all-in-one machine controller 102 exits the idle start-stop functional mode, and simultaneously the all-in-one machine controller 102 controls the indicator lamp to be turned off, and the all-in-one machine controller 102 exits the idle start-stop functional mode in a third preset time interval when the stop time is shorter than the second preset time, and if the all-in, and meanwhile, the all-in-one machine controller 102 controls the instrument indicating lamp to be turned off. In specific implementation, as shown in fig. 5, in the idle start/stop function mode, the all-in-one machine controller 102 periodically (generally, the period time is 10ms < Tz5 < 500 ms) detects whether the idle start/stop switch 112 or the flameout switch 118 is turned off, and exits the idle start/stop function mode if any one of the switches is turned off. When it is detected that both the idle start/stop switch 112 and the stop switch 118 are continuously turned on, the electric quantity Bc and the cylinder temperature T of the battery 101 are periodically detected (generally, the cycle time 10ms < Tz6 < 500 ms), and the idle stop time is continuously accumulated. If the downtime is greater than the second predetermined time Δ T2 (typically, 20min <. DELTA.T 2 < 60 min). The all-in-one controller 102 exits the idle start stop function mode and controls the meter indicator light 114 to go off. During the period that the shutdown time is less than the second preset time delta T2, in a third preset time interval delta T3 (generally, 2s is less than delta T3 and less than 10 s), if the integrated machine controller 102 continuously detects that the electric quantity Bc of the storage battery 101 is less than a second preset electric quantity Bc2 (generally, 55% Bm is less than Bc2 and less than 70% Bm, wherein Bm is the maximum charge quantity of the storage battery) or the cylinder temperature is less than a second preset temperature T2 (generally, 40 ℃ is less than T2 and less than 50 ℃), the integrated machine controller 102 exits the start-stop idling function mode. While the meter indicator lamp 114 is turned off.
The flow of the method for the two-in-one magneto 103 to drive the crankshaft 110 to rotate and find the position during idle stop is shown in fig. 10, when the all-in-one controller 102 controls the engine 104 to stop in an idle mode, the all-in-one controller 102 sends a stop instruction to the ECU105, the ECU105 controls the fuel injection and ignition signals of the fuel injector 115 and the ignition coil 116 to be cut off, and simultaneously sends a fuel cut-off and fuel cut-off state flag bit to the all-in-one controller 102, after the all-in-one controller 102 receives the state bit information, the exhaust top dead center position a and the compression top dead center position B are determined by referring to the method for judging the top dead center position a and the top dead center position B (the top dead center position a and the position B are shown in fig. 7) shown in fig. 8, and then whether the engine speed Rpm is. And if the engine rotating speed Rpm is not detected to be less than the second set rotating speed Rpm2, returning to continuous detection, and if the engine rotating speed Rpm is detected to be less than the second set rotating speed Rpm2, judging whether the engine 104 rotates or not by the aid of a Hall sensor 111 arranged in the two-in-one magnetic motor 103. If the all-in-one controller 102 does not detect the reverse rotation signal of the engine 104, the continuous detection is returned.
If the all-in-one controller 102 detects that the engine 104 is forwarding, the reverse position finding method of fig. 9 is invoked. If the all-in-one controller 102 determines that the engine 104 rotates reversely at the exhaust top dead center a, the all-in-one controller 102 switches the voltage regulating rectifier function to the motor controller function, and controls the two-in-one magnetor 103 to drive the engine 104 to rotate reversely. In the reverse rotation process, the all-in-one machine controller 102 controls the driving current IAq (generally, 2A < IAq < 20A) to ensure that the engine 104 is dragged to rush into an exhaust stroke (actually corresponding to air intake) after the reverse rotation, brakes after the crankshaft 110 reverses the angle theta A (generally, 90 degrees < theta A < 180 degrees), and adjusts the braking current IAb1 (generally, 10A < IAb1 < 60A) and the braking time TAb1 (generally, 100ms < TAb1 < 2000 ms). The stopping position of the crankshaft 110 after the engine 104 is braked is ensured to be within the angle range from beta 1 to beta 2 (generally, the angle is 5 degrees < beta 1 < 10 degrees, and 70 degrees < beta 2 < 90 degrees) after the starting position of the exhaust stroke (corresponding to the crank rotation angle of 180 degrees). If the all-in-one controller 102 determines that the engine 104 rotates reversely at the compression top dead center B, the all-in-one controller 102 switches the voltage regulating rectifier function to the motor controller function, and controls the two-in-one magnetor 103 to drive the engine 104 to rotate reversely. During the reverse rotation, the all-in-one controller 102 controls a driving current IBq (generally, 10A < IBq < 60A) to ensure that the engine 104 is dragged to rush through a position with larger resistance of an intake stroke (corresponding to exhaust) after the reverse rotation, the crankshaft 110 rotates 360 degrees, then the crankshaft is maintained to rotate theta B (generally, 90 degrees < theta B < 180 degrees) by a smaller driving current IBq1 (generally, 5A < IBq1 < 20A), braking is carried out after the crankshaft rotates theta B (generally, 90 degrees < theta B < 180 degrees), and the braking current IBb1 (generally, 10A < IBb1 < 50A) and the braking time TBb1 (generally, 100ms < TBb1 < 2000 ms) are adjusted. The stopping position of the crankshaft 110 after the engine 104 is braked is ensured to be within the angle range from beta 1 to beta 2 (generally, the angle is 5 degrees < beta 1 < 10 degrees, and 70 degrees < beta 2 < 90 degrees) after the starting position of the exhaust stroke (corresponding to the crank rotation angle of 180 degrees).
As shown in fig. 6, in the idle start/stop function signal indicating method, the all-in-one machine controller 102 is in a non-idle start/stop working state, the instrument indicator is turned off, the all-in-one machine controller 102 enters an idle start/stop working mode, the instrument indicator is normally on, the all-in-one machine controller 102 is in an idle mode stop waiting state, and the instrument indicator is turned on.
In particular, the method for judging the exhaust stroke top dead center position A and the compression stroke top dead center position B of the four-stroke engine is disclosed. Specifically, the all-in-one machine controller 102 judges two top dead center positions in a complete process of the four-stroke engine through hall signals, calculates rotation speed variation quantity delta Rpm1 and delta Rpm2 when the engine 104 passes through the top dead center positions, judges that the variation quantity delta Rpm1 corresponds to an upper dead center as an exhaust stroke top dead center position A if delta Rpm1 is smaller than delta Rpm2, judges that the variation quantity delta Rpm2 corresponds to an upper dead center as a compression stroke top dead center position B, and the positions of A and B are shown in figure 7.
As a modification of this method, the rotation speed change rate Δ Rpm/Δ t may be added as an auxiliary determination condition during implementation. Such modifications are also intended to fall within the scope of this patent.
Further, when the all-in-one controller 102 controls the idling stop, the idling stop instruction is sent to the ECU105, the ECU105 controls the oil injection and ignition signals to be cut off simultaneously, and meanwhile, the oil and ignition cut-off state flag bit is sent to the all-in-one controller 102. After receiving the information, the all-in-one machine controller 102 determines whether the current engine speed is lower than a second preset speed, and if the engine speed is lower than the second preset speed, determines whether the current engine is reversed through a hall signal. And if the engine is judged not to rotate reversely, returning to the continuous detection, and if the engine is judged to rotate, calling a reverse rotation position finding method.
Further, a method of reverse indexing of crankshaft 110 by two-in-one magneto 103 during idle shutdown includes reverse indexing from exhaust top dead center position A and reverse indexing from compression top dead center position B. In the method for finding the position by reversing from the exhaust top dead center position a, after the all-in-one machine controller 102 detects that the engine 104 is reversed at the compression top dead center position a, the all-in-one machine controller 102 is switched to a motor controller to work, and the two-in-one magneto 103 is controlled to be reversed to maintain the engine in a reversed state. The driving current is controlled to ensure that the engine crankshaft 110 reaches a proper braking position after rotating by a corresponding angle, and the braking current and the braking time are controlled from the braking position to ensure that the stopping position of the crankshaft 110 is within the angle range from beta 1 to beta 2 after the exhaust stroke starting position (the crankshaft rotation angle is 180 degrees) when the engine is stopped. The method for reversely finding the position from the compression top dead center position B is similar to the method for reversely finding the position from the exhaust top dead center position A, the difference is that the two-in-one magnetor is controlled by the integrated machine controller to drive the crankshaft to rotate at different angles when reversely rotating, and the braking current and the braking time are different.
By the control method, the two-in-one magneto 103 has enough acceleration time when the two-in-one magneto is restarted after idling stop, the maximum resistance point of the compression top dead center position can be effectively overcome, and smooth completion of starting is ensured. The whole control flow chart of the whole idle speed start-stop system of the motorcycle based on the method is shown in figures 11 and 12.
When the invention is implemented, the whole motorcycle system complete control strategy flow based on the strategy also belongs to the protection scope of the patent.
The invention mainly provides a motorcycle system structure capable of realizing an idle speed start-stop function, and simultaneously provides a control strategy related to the realization of the idle speed start-stop function based on the structure. In order to ensure the convenience of problem description, the system structure parameters listed in the invention are properly simplified, but the proper change based on the system framework also belongs to the protection scope of the invention.
The present invention is not described in detail in the prior art.
The embodiments selected for the purpose of disclosing the invention, are presently considered to be suitable, it being understood, however, that the invention is intended to cover all variations and modifications of the embodiments which fall within the spirit and scope of the invention.
Claims (12)
1. An idling start-stop system for a motorcycle comprises a storage battery (101), an all-in-one machine controller (102), a two-in-one magneto (103), an engine (104) and an ECU (105), and is characterized in that: the two-in-one magnetic motor (103) is integrated with a rotating speed pulse signal sensor (108) and a Hall sensor (111), a rotor of the two-in-one magnetic motor (103) is arranged on a crankshaft (110) of an engine (104), the two-in-one magnetic motor (103) is connected with an all-in-one machine controller (102), the all-in-one machine controller (102) is respectively connected with a storage battery (101), an ECU (105), an idle speed start-stop switch (112), a brake signal (113), an instrument indicator lamp (114), a flameout switch (118) and a starting switch (120), the ECU (105) is respectively connected with an engine cylinder temperature sensor (107), a rotating speed pulse signal sensor (108), a rear wheel axle rotating speed sensor (109), a flameout switch (118), an ignition switch (119) and an ignition coil (116) on the engine (104), the engine (104) is respectively provided with an oil injector (115), an ignition coil (116) and an, the accelerator opening sensor (117) is connected with an accelerator rotating handle (106), and the ignition switch (119) is connected with a storage battery (101) to form the idling start-stop system for the motorcycle.
2. The idle start stop system for a motorcycle of claim 1, wherein: the all-in-one machine controller (102) is connected with an ECU (105) through CAN communication.
3. The idle start stop system for a motorcycle of claim 1, wherein: the two-in-one magneto (103) is a magneto integrated with a starting motor function.
4. The idle start stop system for a motorcycle of claim 1, wherein: and the integrated controller (102) and the ECU (105) are integrated to form the whole vehicle controller.
5. The method as claimed in any one of claims 1 to 4, wherein the method for controlling an idle start/stop system for a motorcycle comprises the steps of: the control method comprises an idling start-stop function mode starting method, an idling start-stop mode stopping method, an idling start-stop mode restarting method, an idling start-stop mode quitting method and an idling start-stop function signal indicating method, connection of various signals and control instructions is achieved between the all-in-one machine controller (102) and the ECU (105) through a CAN communication network, the connection comprises starting instructions, stopping instructions and parameter information of sensors related to the whole vehicle, the ECU (105) collects signals related to accelerator opening, engine cylinder temperature, engine rotating speed, vehicle speed, an ignition switch power supply, a flameout switch state and control function and an engine running state, meanwhile, communication information of the all-in-one machine controller (102) is combined, and accurate control of engine oil injection and ignition signals during starting, idling stop and idling restart is achieved through internal logic judgment.
6. The control method of an idle start stop system for a motorcycle of claim 5, wherein: the starting method of the idling start-stop function mode comprises the steps that when an engine (104) normally runs and an idling start-stop switch (112) is in an opening condition, an all-in-one machine controller (102) periodically detects the speed of the whole vehicle, the temperature of an engine cylinder, the opening degree of an accelerator and the electric quantity parameters of a storage battery (101), when the conditions that the speed of the whole vehicle is greater than a first preset speed, the temperature of an engine cylinder is greater than a first preset temperature, the opening degree of an accelerator is greater than a first preset opening degree and the electric quantity of a storage battery (101) is greater than a first preset electric quantity are simultaneously met, an all-in-one machine controller (102) enters an idle start-stop function mode, meanwhile, the integral machine controller (102) controls the instrument indicator lamp to be on constantly for indication, if the idle start-stop switch (112) is turned off in the state, the integrated machine controller (102) exits the idle start-stop working mode, the indicator light of the control instrument is turned off, and the engine (104) runs normally.
7. The control method of an idle start stop system for a motorcycle of claim 5, wherein: the idle start-stop mode shutdown method comprises the steps that after the idle start-stop function mode is started, the all-in-one machine controller (102) periodically and continuously detects the vehicle speed, the accelerator opening and the rotating speed parameter information of the engine (104), when the detected vehicle speed is less than the second preset vehicle speed, the rotating speed of the engine (104) is less than the first preset rotating speed, the opening degree of the accelerator is less than the second preset opening degree, when the three conditions are simultaneously met and the duration time is longer than a first preset time, the all-in-one machine controller (102) triggers an idling start-stop mode stop function and sends a stop request to the ECU (105), the ECU (105) realizes the stop of the engine (104) by cutting off the oil injection and ignition signals of the engine (104), and meanwhile, an execution state instruction is returned to the all-in-one machine controller (102), the all-in-one machine controller (102) calls an idle stop position finding method, and an indicator lamp of the control instrument is lightened to indicate after the stop is finished.
8. The control method of an idle start stop system for a motorcycle of claim 5, wherein: the method for restarting after the idling start-stop mode is that in the stop state after the idling start-stop mode is started, the all-in-one machine controller (102) periodically detects the state of an idling start-stop switch (112) or a flameout switch (118), if any switch is disconnected, the idle start stop mode is exited, if the idle start stop switch (112) and the flameout switch (118) are both kept in the closed state, the all-in-one machine controller (102) periodically detects the throttle opening signal, if the throttle opening is larger than a third preset opening, the all-in-one machine controller (102) detects whether the brake signal is true, if the brake signal is true, the two-in-one magnetor (103) is controlled to rotate to be matched with the ECU (105) to control the engine (104) to start, if the brake signal is false, and then the integrated machine controller (102) does not respond to the restarting instruction, and controls the instrument indicator lamp lighting state to be adjusted correspondingly after the restarting instruction is executed and is successful.
9. The control method of an idle start stop system for a motorcycle of claim 5, wherein: the method for exiting the idling start-stop mode comprises the steps that in the idling start-stop state, an all-in-one machine controller (102) periodically detects whether an idling start-stop switch (112) or a flameout switch (118) is closed, if any switch is closed, the idling start-stop function mode exits, if the idling start-stop switch (112) and the flameout switch (118) are detected to be both in an open state, the electric quantity of a storage battery (101) and the temperature of a cylinder body are periodically detected, meanwhile, the idling stop time is continuously accumulated, if the idling stop time is longer than a second preset time, the all-in-one machine controller (102) exits the idling start-stop function mode, meanwhile, the all-in-one machine controller (102) controls an instrument indicator lamp to be turned off, in a third preset time interval when the stop time is shorter than the second preset time, if the all-in-one machine controller (102) continuously detects that the electric quantity of the, the idling start-stop function mode is exited, and the integral controller (102) controls the instrument indicator lamp to be turned off.
10. The control method of an idle start stop system for a motorcycle of claim 5, wherein: the idle speed start-stop function signal indicating method includes that an all-in-one machine controller (102) is in a non-idle speed start-stop working state, an instrument indicating lamp is turned off, the all-in-one machine controller (102) enters an idle speed start-stop working mode, the instrument indicating lamp is normally on, the all-in-one machine controller (102) is in an idle speed mode stop waiting state, and the instrument indicating lamp is turned on.
11. The control method of an idle start stop system for a motorcycle as set forth in claim 7, wherein: the method for calling the idling stop position by the all-in-one machine controller (102) during stopping in the idling start-stop mode comprises a method for judging the exhaust stroke top dead center position and the compression stroke top dead center position of the four-stroke engine, namely the all-in-one machine controller (102) calculates the rotating speed variation quantity delta Rpm1 and delta Rpm2 when the engine passes through the top dead center position through Hall signals, if delta Rpm1 is smaller than delta Rpm2, the variation quantity delta Rpm1 is judged to correspond to the top dead center as the exhaust stroke top dead center position, and the variation quantity delta Rpm2 is judged to correspond to the top dead center as the compression stroke top dead center position.
12. The control method of an idle start stop system for a motorcycle as set forth in claim 7, wherein: the method for finding the position of the idling stop is called by the integrated machine controller (102) during stop of the idling start-stop mode and comprises a method for finding the position from the top dead center of an exhaust stroke in a reverse mode and a method for finding the position from the top dead center of a compression stroke in a reverse mode, the stop position after the reverse rotation is located in a range from beta 1 to beta 2 after the start position of the exhaust stroke, and the angle range between the beta 1 and the beta 2 is 5 degrees to beta 1 degrees and 10 degrees, and 70 degrees to beta 2 degrees and 90 degrees.
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| CN115503683A (en) * | 2022-11-18 | 2022-12-23 | 华侨大学 | Hybrid power motorcycle and shutdown method and device thereof |
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Application publication date: 20210427 |
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