Mình mới múc con này, đang chờ BS, cần bổ sung thêm:
- Đèn pha khi nổ máy là sáng(nói là theo châu Âu), nên phải chế thêm công tắc bật tắt hết 280 K.
- Tay nắm sau bằng nhôm đó bác, phía trên là ốp nhựa thôi.
- Nhìn kỹ thấy xe này vừa giống xe tay ga vừa giống xe môtô(tay lái, gương)
- Đèn pha khi nổ máy là sáng(nói là theo châu Âu), nên phải chế thêm công tắc bật tắt hết 280 K.
- Tay nắm sau bằng nhôm đó bác, phía trên là ốp nhựa thôi.
- Nhìn kỹ thấy xe này vừa giống xe tay ga vừa giống xe môtô(tay lái, gương)
dubahasa nói:Ủa, sao mình ko post được các đường link nhỉ, bro nào biết chỉ giùm. Tks
bác chưa đủ 50 bài đó, bác pm em cái đường link em post giùm cho
Chào bạn tran long:
Mình đã đọc kỹ tài liệu của HONDA về hệ thống "Idling Stop System" rồi, hệ thống sạc điện của những xe này rất mạnh so với xe thông thường, do đó mình nghĩ đèn luôn sáng chính là một biện pháp để ổn định dòng sạc và bảo vệ cho bình điện. Không nên tắt đèn khi xe hoạt động, dễ hư bình và sạc như vết xe đổ SH đã qua.
Bạn có thể tham khảo thêm tại đây.
Phòng hờ trường hợp ko add được link, mình copy ra đây luôn:
[class=lb]The charging voltage at the time of start is regulated.
To reduce friction from power generation, and to ensure strong vehicle acceleration when equipped with the “idling stop system”, the charging voltage is lowered to 12 volts from the normally regulated voltage of 14.5 volts for a prescribed period of time. In doing so, the battery is not charged during vehicle acceleration, and charged only during constant speed or deceleration. Charging during deceleration is especially effective because it means an efficient use of energy.
Còn đây là toàn bộ tài liệu về "Idling Stop System" & "ACG Starter" cho các bạn tham khảo:
Stops the engine automatically, starts the engine by only opening the throttle.
<hr/> [class=lb]Incorporating an ECU (Electronic Control Unit) that centrally controls engine operations on the basis of inputs from various sensors, the “idling stop system” automatically stops idling when the vehicle stops for a traffic signal or traffic jam, and restarts the vehicle when the throttle is opened.
[class=lb]Key points of development
In the “idling stop system”, the ECU centrally controls engine operations on the basis of inputs from various sensors. By precisely controlling revolutions of the ACG starter, which is directly mounted on the end of the crankshaft and serves as an ACG (alternator), as well as a starter motor, the system permits jolt-free restarting. The speed sensor, thermo-sensor, throttle sensor, pulse generator, and seat sensor detect conditions such as stopping of the vehicle, engine temperature, throttle opening, engine revolutions, seating of the rider, etc. During cold starts, the ECU automatically stops the engine when warm, and restarts the engine when the throttle is opened. It also controls the stand-by indicator lamp that notifies the rider of the condition of the “idling stop system”.
”Idling stop system” configuration
[class=lb]Operations of “idling stop system”
Operations of “idling stop system”
Additional functions when “idling stop” occurs/When the vehicle is in the “idling-stop” condition, the stand-by indicator blinks to inform the rider that the vehicle is ready to be started by opening the throttle. A seat switch, which detects presence of a rider, is used to prevent unexpected engine starting when no rider is on the vehicle. The headlamp voltage is also regulated to reduce electric power consumption.
The meter for Crea Scoopy-i 1.When starting the engine (initial starting) Initially, the rider starts the engine by pushing the starter button in the same manner as an ordinary scooter because it sometimes takes several seconds to start a cold engine after long-term storage or when the ambient temperature is low. Under these conditions, the engine continues to idle eventhough the vehicle is not moving for more than 3 seconds. 2.When engine is warm and/or during vehicle movement (shifts to the “idling stop” mode) After initial engine start, vehicle speed has exceeded 10km/h, and the water temperature sensor detects a temperature above 50?, by which the ECU judges that the engine has been warmed up, the system shifts to the “idling stop” mode from the next stop of the vehicle. 3.When the vehicle stops moving (“idling stop” ready) As the vehicle stops with the throttle fully closed and the rider seated, the ignition is turned off to stop the engine. The ignition turns off 3 seconds after the vehicle stops moving. The delayed engine shut-off allows the rider the ability to make a U turn or a momentary stop at a stop sign. 4.When restarting ( engine restart and vehicle movement ) When restarting, the throttle sensor attached to the carburetor detects an opening of the throttle, and the system turns on the starter motor as well as allowing ignition. As the engine starts and the engine speed increases, the centrifugal clutch engages, thus starting the vehicle movement.
[class=lb]0.9 second from the opening of throttle to the start of vehicle
The time period from the opening of throttle to the start of vehicle is 0.5sec when the engine is idling, and it is 0.9sec when not idling. Although there is a delay of 0.4sec, practically the delay in the starting of vehicle is almost unnoticeable.
Time from opening throttle to vehicle movement
This graph compares the time period from opening throttle to vehicle movement with and without the engine idling. The time duration from opening throttle is shown on the horizontal axis, engine revolutions shown on the left vertical axis, and the distance of vehicle travel shown on the right vertical axis. Starts the engine quiet and jolt-free, scooter starts moving smoothly
<hr/> [class=lb]In the “idling stop system”, it is important to have a quiet starting charging system that keeps the battery adequately charged to assure starter motor operations. Also, it is important to have a fuel supply system that ensures restarting of the engine even after the throttle has been opened. The key component for engine starting and battery charging is the newly developed ACG starter having a combination of alternator and starter functions.
[class=lb]Alternator/starter motor directly mounted on the end of the crankshaft
Crea Scoopy-i engine equipped with the ACG starter
ACG starter In order to start the engine smoothly from the state of idling stop, the brush-less ACG starter has been developed. This is an integrated component mounted directly on the end of the crankshaft serving as a starter motor and an alternator. The new ACG starter technologies permits smooth starting, directly cranks the engine. This eliminates typical noise from the starter gear engagement or meshing.
The brush-less ACG starter is an outer-rotor type having magnets in the flywheel. The stator is a 3-phase winding. The flywheel and the stator serve as a DC brush-less motor when the power is applied through the FET in the ECU. The sensor magnet located in the center part of the rotor, and the Hall-IC-type angle sensor mounted on the stator, detect the rotor position.
Cross sectional view of brush-less ACG starter
[class=lb]When the ACG functions as a starter motor
ECU that controls the ACG starter The rotor core, which serves as an iron core, is located between the magnets in the rotor. A coil is wound around the stator core, which serves as an iron core. By this construction, the single unit serves both purposes as a starter motor and an alternator.
When working as a starter motor
The magnetic flux from the custom-shaped magnet acts on the stator core via the rotor core. When the power is applied to the stator coils, strong magnetic flux occurs in the stator cores, producing adequate torque required to crank the engine.
Cross sectional view of brush-less ACG starter
When working as an ACG (alternator) If an ordinary starter motor is rotated to a high revolution, an excessive charging current and a large friction from the core loss occur, which does not allow a starter motor to serve as an alternator. In the newly developed ACG starter, laying a rotor core between the magnets has solved the aforementioned problem.
The magnetic flux from the magnets acts on the rotor core and toward the stator core. When a charging current occurs in the coil, the magnetic flux in the reverse direction occurs in the stator core, increasing the magnetic flux toward the rotor core and reducing the magnetic flux toward the stator core. Thus, the friction from the core loss has been successfully reduced while attaining an adequate level of power generation.
When working as an alternator Precise control of charging and discharging the battery
<hr/> [class=lb]When the starter is unable to crank the engine due to a discharged battery, a vehicle equipped with an “idling stop system”, will not start. To prevent discharging of the battery, even when operated in traffic, the charging capacity for the “idling stop system” is set higher than usual.
[class=lb]Charging system designed to prevent discharging of the battery
It is necessary to increase charging capacity for an “idling stop” vehicle compared to a vehicle that with idling. This is necessary because the battery is not charging when the vehicle is stopping for a traffic signal etc.
An “idling stop” vehicle cannot restart if the battery is discharged and the starter motor cannot crank the engine. To cope with the aforementioned, the charging output from the ACG starter in the “idling stop” vehicle is designed to such a level that prevents the battery from discharging even when operated on congested roads using the “idling stop system”.
[class=lb]Reduced friction from the power generation
When an “idling stop system” is applied, due to lack of power generation during stopping, the electrical loads, such as the headlamp, draw a considerable amount of power from the battery when stopping. Power consumed from the battery during stopping is quickly recovered from the alternator when the engine revolutions increase and the power generation starts. A considerable amount of mechanical energy from the engine must be consumed for the power generation by the alternator, resulting in weak vehicle acceleration.
Friction from power generation
[class=lb]The charging voltage at the time of start is regulated.
To reduce friction from power generation, and to ensure strong vehicle acceleration when equipped with the “idling stop system”, the charging voltage is lowered to 12 volts from the normally regulated voltage of 14.5 volts for a prescribed period of time. In doing so, the battery is not charged during vehicle acceleration, and charged only during constant speed or deceleration. Charging during deceleration is especially effective because it means an efficient use of energy.
Charging voltage regulation Improved fuel economy and reduced exhaust emissions in city-driving mode
<hr/> [class=lb]The “idling stop system” reduces fuel consumption and exhaust emissions by automatically stopping the engine while the vehicle is stopping due to a traffic signal or traffic jam. The newly developed system allows reduction of fuel consumption and exhaust emissions in the domestic emission measurement mode without an additional emission control system.
[class=lb]Benefits of the “idling stop system”
Compared to the standard type without the “idling stop system”, the 50cc, 4-stroke scooter “Crea Scoopy-i” equipped with the “idling stop system” improves fuel economy by 5.5% in the domestic exhaust emission measurement mode that presumes city driving. Also the CO2 emission is reduced by 5.2%, CO by 8% and HC by 2%.
Improved fuel economy and reduced exhaust emissions in “Crea Scoopy-i” equipped with the “idling stop system” Bác tran long múc con này hôm nay bao nhiêu vậy, để mình xem mình có bị lỗ nhiều không
Mình đã đọc kỹ tài liệu của HONDA về hệ thống "Idling Stop System" rồi, hệ thống sạc điện của những xe này rất mạnh so với xe thông thường, do đó mình nghĩ đèn luôn sáng chính là một biện pháp để ổn định dòng sạc và bảo vệ cho bình điện. Không nên tắt đèn khi xe hoạt động, dễ hư bình và sạc như vết xe đổ SH đã qua.
Bạn có thể tham khảo thêm tại đây.
Phòng hờ trường hợp ko add được link, mình copy ra đây luôn:
[class=lb]The charging voltage at the time of start is regulated.
Còn đây là toàn bộ tài liệu về "Idling Stop System" & "ACG Starter" cho các bạn tham khảo:
Stops the engine automatically, starts the engine by only opening the throttle.
<hr/> [class=lb]Incorporating an ECU (Electronic Control Unit) that centrally controls engine operations on the basis of inputs from various sensors, the “idling stop system” automatically stops idling when the vehicle stops for a traffic signal or traffic jam, and restarts the vehicle when the throttle is opened.
Additional functions when “idling stop” occurs/When the vehicle is in the “idling-stop” condition, the stand-by indicator blinks to inform the rider that the vehicle is ready to be started by opening the throttle. A seat switch, which detects presence of a rider, is used to prevent unexpected engine starting when no rider is on the vehicle. The headlamp voltage is also regulated to reduce electric power consumption.
This graph compares the time period from opening throttle to vehicle movement with and without the engine idling. The time duration from opening throttle is shown on the horizontal axis, engine revolutions shown on the left vertical axis, and the distance of vehicle travel shown on the right vertical axis. Starts the engine quiet and jolt-free, scooter starts moving smoothly
<hr/> [class=lb]In the “idling stop system”, it is important to have a quiet starting charging system that keeps the battery adequately charged to assure starter motor operations. Also, it is important to have a fuel supply system that ensures restarting of the engine even after the throttle has been opened. The key component for engine starting and battery charging is the newly developed ACG starter having a combination of alternator and starter functions.
The brush-less ACG starter is an outer-rotor type having magnets in the flywheel. The stator is a 3-phase winding. The flywheel and the stator serve as a DC brush-less motor when the power is applied through the FET in the ECU. The sensor magnet located in the center part of the rotor, and the Hall-IC-type angle sensor mounted on the stator, detect the rotor position.
The magnetic flux from the custom-shaped magnet acts on the stator core via the rotor core. When the power is applied to the stator coils, strong magnetic flux occurs in the stator cores, producing adequate torque required to crank the engine.
The magnetic flux from the magnets acts on the rotor core and toward the stator core. When a charging current occurs in the coil, the magnetic flux in the reverse direction occurs in the stator core, increasing the magnetic flux toward the rotor core and reducing the magnetic flux toward the stator core. Thus, the friction from the core loss has been successfully reduced while attaining an adequate level of power generation.
<hr/> [class=lb]When the starter is unable to crank the engine due to a discharged battery, a vehicle equipped with an “idling stop system”, will not start. To prevent discharging of the battery, even when operated in traffic, the charging capacity for the “idling stop system” is set higher than usual.
An “idling stop” vehicle cannot restart if the battery is discharged and the starter motor cannot crank the engine. To cope with the aforementioned, the charging output from the ACG starter in the “idling stop” vehicle is designed to such a level that prevents the battery from discharging even when operated on congested roads using the “idling stop system”.
<hr/> [class=lb]The “idling stop system” reduces fuel consumption and exhaust emissions by automatically stopping the engine while the vehicle is stopping due to a traffic signal or traffic jam. The newly developed system allows reduction of fuel consumption and exhaust emissions in the domestic emission measurement mode without an additional emission control system.
Cảm ơn bác đã đăng bài rất thú vị. Mình biết tiếng Anh sơ sơ và hiểu hệ thống điện này thiết kế cho idling st. system, nghĩa là khi tạm dừng thì dòng điện sẽ giảm xuống 12V, để không sạc được cho bình. Nếu sạc thì không đủ mạnh để depart xe (tăng tốc) và chỉ sạc khi xe chạy ổn định hoặc giảm tốc. Mình nghĩ máy phát không đến nổi quá mạnh để làm hư bình nếu không xài đèn liên tục, vì khi xe chạy còn xài điện cho những bộ phận khác nửa.