Tài liệu BOSCH về hệ thống đánh lửa trên ô tô
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Tài liệu BOSCH về hệ thống đánh lửa trên ô tô
Tài liệu BOSCH về hệ thống đánh lửa trên ô tô
136Ignition systems over the years OverviewIgnition systems over the yearsThe gasoline, or spark-ignition, engine is an internal-combustion machine th Tài liệu BOSCH về hệ thống đánh lửa trên ô tô hat relies on an external source of ignition-energy to run. An ignition spark ignites the air/fuel mixture compressed in the combustion chamber to initiate the combustion process. This ignition spark is generated by a flashover between the electrodes of a spark plug extending into the combustion cha Tài liệu BOSCH về hệ thống đánh lửa trên ô tô mber. The ignition system must generate adequate levels of high-voltage energy to generate the flash-over at the spark plug while also ensuring that tTài liệu BOSCH về hệ thống đánh lửa trên ô tô
he ignition spark is triggered at precisely the right instant.OverviewDevelopment history of Bosch ignition systemsMagnetoIgnition in gasoline engines136Ignition systems over the years OverviewIgnition systems over the yearsThe gasoline, or spark-ignition, engine is an internal-combustion machine th Tài liệu BOSCH về hệ thống đánh lửa trên ô tô ame available which was deemed sufficiently reliable for the conditions obtaining at the time. The magneto generated by means of magnetic induction in a wound armature an ignition current which, when interrupted, triggered an ignition spark at the arcing mechanism. This spark was able to ignite the Tài liệu BOSCH về hệ thống đánh lửa trên ô tô mixture in the combustionDevelopment of inductive >gnit on systemschamber. However, the limits of this technology were soon to become apparent.High-voTài liệu BOSCH về hệ thống đánh lửa trên ô tô
ltage magneto ignition was able to satisfy the demands of faster-running engines. This magneto also generated a voltage by means of magnetic induction136Ignition systems over the years OverviewIgnition systems over the yearsThe gasoline, or spark-ignition, engine is an internal-combustion machine th Tài liệu BOSCH về hệ thống đánh lửa trên ô tô se.Battery ignitionThe demand for more cost-efficient ignition system led to the development of battery ignition; this gave rise to conventional coil ignition with a battery serving as the supplier of energy and an ignition coil serving as the energy storage medium (Fig. 2). The coil current was swi Tài liệu BOSCH về hệ thống đánh lửa trên ô tô tched via the breaker point. A mechanical governor and a vacuum unit served to adjust the ignition angle.Development did not stop there. Electronic coTài liệu BOSCH về hệ thống đánh lửa trên ô tô
mponents began to be used and gradually the amount of electronic components increased. First of all, with transistorized ignition, the coil current wa136Ignition systems over the years OverviewIgnition systems over the yearsThe gasoline, or spark-ignition, engine is an internal-combustion machine th Tài liệu BOSCH về hệ thống đánh lửa trên ô tô ariants, the breaker contact, which still served as the control element for activating the ignition coil, was replaced. This function was now taken over by Hall generators or induction-type pulse generators.The next step was electronic ignition. The load- and speed-dependent ignition angle was now s Tài liệu BOSCH về hệ thống đánh lửa trên ô tô tored in a program map in the ECU. Now it was possible to take into account further parameters, such as, for example, the engine temperature, for deteTài liệu BOSCH về hệ thống đánh lửa trên ô tô
rmining the ignition angle. In the final step, with the arrival of distributorless semiconductor ignition, even the mechanical distributor has now bee136Ignition systems over the years OverviewIgnition systems over the yearsThe gasoline, or spark-ignition, engine is an internal-combustion machine th Tài liệu BOSCH về hệ thống đánh lửa trên ô tô s semiconductor ignition in the engine-management systems, have been used.K. Reif (Ed.), Gasoline Engine Management, Bosch Professional Automotive Information, DOI 10.1007/978-3-658-03964-6_10, ©springer Fachmedien Wiesbaden 2015Ignition systems over the years Bosch battery ignition13/a h battery g- Tài liệu BOSCH về hệ thống đánh lửa trên ô tô ntũriA framing chart from 1969 showing Bosch battery igrrtion138Ignition systems over the years Eary ignitcn evo'utionthe Voila ptrJol combined two biTài liệu BOSCH về hệ thống đánh lửa trên ô tô
iNx: ctamenl:; cif engine lcHÌinoiegy: II used a mnlun: cil air and gar., and reled on an etectri cal spark. It is here that the story of electric ign136Ignition systems over the years OverviewIgnition systems over the yearsThe gasoline, or spark-ignition, engine is an internal-combustion machine th Tài liệu BOSCH về hệ thống đánh lửa trên ô tô ve internal coin buslion machines suitable lor replacing the steam engines which were widely used al the time.’t he first known attempt to create a thermal-energy machine to replace boiler, burner and steam with internal combustion was undertaken by Christiaan I luygens in the year 1673. The fuel us Tài liệu BOSCH về hệ thống đánh lửa trên ô tô ed in this powder machine (Fig. 1) was gunpowder (1), which was ignited with a fuse (2). Following igni tion, the combustion gases escape through non-Tài liệu BOSCH về hệ thống đánh lửa trên ô tô
return valves (4) from the tube (3), in which a vacuum is then created. Atmospheric pressure forces the piston (5) downwards, and a weight G (7) is li136Ignition systems over the years OverviewIgnition systems over the yearsThe gasoline, or spark-ignition, engine is an internal-combustion machine th Tài liệu BOSCH về hệ thống đánh lửa trên ô tô r, in 1777, Alessandro Volta experimented with igniting a mixture of air and marsh gas using sparks, spark generation was provided by the electro-phorous tube which he had invented in 1775. This effect was utilized in the Volta pistol.In 1807 Isaak de Rivaz developed an atmospheric piston engine, in Tài liệu BOSCH về hệ thống đánh lửa trên ô tô which he utilized the principle of Volta's gas pistol and ignited a combustible air/gas mixture with an elec trical spark. Rivaz built an experimentaTài liệu BOSCH về hệ thống đánh lửa trên ô tô
l ve hide (Fig. 2) based on his patent drawings, but soon abandoned his efforts in response to less than satisfactory results. Working along similar l136Ignition systems over the years OverviewIgnition systems over the yearsThe gasoline, or spark-ignition, engine is an internal-combustion machine th Tài liệu BOSCH về hệ thống đánh lửa trên ô tô as thus able to move forward a few meters, but then fresh combustion mixture had to be admit ted into the cylinder and ignited.Mobile applications in a motor vehicle called for engines with continuous outgoing power. Igniting the combustible mixture in the cylinder proved to be the main problem here Tài liệu BOSCH về hệ thống đánh lửa trên ô tô . Many engine builders were working on finding solutions, and various systems came into being at the same time.High-voltage vibrator ignitionA conceptTài liệu BOSCH về hệ thống đánh lửa trên ô tô
for a battery-based ignition system had been available since 1860, when the Frenchman Etienne Lenoir constructed a "high-voltage vibrator ignition” s136Ignition systems over the years OverviewIgnition systems over the yearsThe gasoline, or spark-ignition, engine is an internal-combustion machine th Tài liệu BOSCH về hệ thống đánh lửa trên ô tô le, by a galvanic elementFig. 11Capsule with gunpowder2I use136Ignition systems over the years OverviewIgnition systems over the yearsThe gasoline, or spark-ignition, engine is an internal-combustion machine thGọi ngay
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