The non-contact ignition system is a constructive continuation of the contact-transistor ignition system. In this ignition system, the contact chopper is replaced by a proximity sensor. A non-contact ignition system is standardly installed on a number of models of domestic cars, and can also be installed independently instead of a contact ignition system. The use of a contactless ignition system allows to increase engine power, reduce fuel consumption and emissions of harmful substances due to a higher discharge voltage (30000V) and, accordingly, better combustion of the fuel-air mixture. Structurally, the contactless system combines a number of elements, including a power source, an ignition switch, a pulse sensor, a transistor switch, an ignition coil , a distributor, and, of course, spark plugs . The distributor is connected to the spark plugs and the ignition coil using high voltage wires. In general, the device of a contactless ignition system is similar to a contact ignition system , with the exception of a pulse sensor and a transistor switch. The pulse sensor is designed to create low-voltage electrical pulses. There are pulse sensors of the following types: Hall, inductive and optical. The greatest application in a contactless ignition system has been found by a pulse sensor using the Hall effect (the occurrence of transverse voltage in a conductor plate with current under the influence of a magnetic field). The Hall sensor consists of a permanent magnet, a semiconductor wafer with a microcircuit, and a steel screen with slots (shutter). A slot in the steel shield passes a magnetic field and voltage arises in the semiconductor wafer. The steel screen does not allow a magnetic field to pass through, and voltage does not occur on the semiconductor wafer. Alternating slots in the steel screen creates low voltage pulses. The pulse sensor is structurally integrated with the distributor and form one device – the sensor-distributor. The distribution sensor is similar in appearance to the distribution switch and has a similar drive from the engine crankshaft . The transistor switch is used to interrupt the current in the primary circuit of the ignition coil in accordance with the signals of the pulse sensor. The current is interrupted by unlocking and locking the output transistor. The principle of operation of a contactless ignition system When the engine crankshaft rotates, the distribution sensor generates voltage pulses and transmits them to the transistor switch. The switch generates current pulses in the primary circuit of the ignition coil. At the time of current interruption, a high voltage current is induced in the secondary winding of the ignition coil. High voltage current is supplied to the central contact of the distributor. In accordance with the order of operation of the engine cylinders, high voltage current is supplied through the high voltage wires to the spark plugs. Spark plugs ignite the fuel-air mixture. With an increase in the crankshaft speed, the ignition timing is controlled by the centrifugal ignition timing controller. When the load on the engine changes, the ignition timing is controlled by the vacuum ignition timing controller. We are Canberra’s trusted Cash for Car buyer that buy old cars for quick cash of up to $7,999. If you have an old car to sell, give us a call to find out how much cash you can get for it with us today. Get an instant car valuation for your old car, CALL 0434 450 140.

The throttle is a structural element of the intake system of gasoline internal combustion engines with fuel injection and is designed to control the amount of air entering the engine to form a fuel-air mixture. A throttle valve is installed between the air filter and the intake manifold. At its core, the throttle is an air valve. When the damper is open, the pressure in the intake system corresponds to atmospheric pressure; when closed, it decreases to a vacuum. This property of the throttle valve is used in the operation of the vacuum brake booster to purge the adsorber of the gas vapor recovery system . The throttle can be mechanically or electronically controlled. Power Throttle A mechanical throttle actuator is currently used on most budget machines. The drive involves the connection of the gas pedal and throttle with a metal cable. The throttle elements are combined in a separate unit, which includes a housing, a throttle on the shaft, a throttle position sensor , an idle speed control. The throttle body is included in the engine cooling system . It also has nozzles for the operation of the crankcase ventilation system and the gas vapor recovery system. The idle speed controller maintains the set engine speed when the throttle is closed during start-up, warm-up and when the load changes while turning on additional equipment. It consists of a stepper motor and a valve connected to it, which change the amount of air entering the intake system bypassing the throttle. Electric Throttle On modern cars, the mechanical throttle actuator is replaced with an electronically controlled electric drive, which allows to achieve the optimum torque value in all engine operating modes. This ensures a reduction in fuel consumption, compliance with environmental requirements, traffic safety. Distinctive features of an electric throttle valve are: lack of mechanical connection between the accelerator pedal and the throttle; idle control by moving the throttle. Since there is no rigid connection between the gas pedal and the throttle, an electronic throttle control system is used. The electronics in the throttle control allow you to influence the amount of engine torque, even if the driver does not act on the gas pedal. The system includes input sensors, an engine control unit, and an actuator. In addition to the throttle position sensor, the control system uses an accelerator pedal position sensor , a clutch pedal position switch, and a brake pedal position switch. The throttle control system also uses signals from an automatic transmission , brake system , climate control , cruise control system . The engine control unit receives signals from the sensors and converts them into control actions on the throttle module. The throttle module consists of a body, the actual throttle, an electric motor, a gearbox, a return spring mechanism and throttle position sensors. To increase reliability, two throttle position sensors are installed in the module. Potentiometers with sliding contact or non-contact magnetoresistive sensors are used as sensors. Graphs of the output signals of the sensors are directed towards each other, which allows them to distinguish between the engine control unit. The module design provides for an emergency position of the throttle valve in case of a drive malfunction, which is carried out using a return spring mechanism. The defective throttle module is replaced as an assembly. Canberra, your one-stop Cash for Cars service is here with Ultra Cash for Cars. Would you like to Sell Your Car For Cash quickly without missing out on a top Cash payment? Ultra Cash for Cars offers same-day Car Removals paying you up to $7,999 cash. We offer the best Cash for Cars rates in the industry that are only beaten by our expert service that makes sure you get a fair and honest Car Removal experience with integrity.