VVT (Variable Valve Timing) variable valve phase:
It is a device that controls the camshaft valve timing. It is optimized by adjusting the camshaft angle valve timing to improve the engine's power, fuel economy and exhaust emissions in all speed ranges. (now most engines)
VVT-i (Variable Valve Timing intake) intelligent variable valve timing:
A new generation of variable valve timing system, intelligent control of gas timing makes the engine more efficient in all speed range, fuel economy, and reduced exhaust emissions.
VVTL (Variable Valve Timing and Left) variable valve phase and lift:
On the basis of VVT's control of valve timing, a device for valve lift control is added. Since the lift of the valve is changed, the efficiency of intake and exhaust is further improved, and the engine can be used in all speed ranges. The power and fuel economy are further improved, and the emission of exhaust gas is further reduced.
VTEC (Variable Valve Timing and Lift Electronic Control System) variable valve timing and lift electronic control system:
The VTEC system adjusts the rocker piston hydraulic system through a solenoid valve, so that the engine is controlled by different cams under different speed conditions, which affects the opening and time of the intake valve. The difference is the number of cams and rocker arms and the control method, which can greatly improve the combustion efficiency and performance of the engine.
FSI (Fuel Straight Injection) gasoline engine direct injection technology:
Injecting oil from a conventional intake port, instead of directly injecting gasoline into the cylinder. The direct injection in the cylinder promotes the reduction of fuel consumption under high load, especially under low load, through uniform combustion and stratified combustion, and the power is greatly improved. Today, major companies have set their sights on direct injection. For example, Bosch developed the Motronic MED7 gasoline direct injection system, Audi developed the FSI system, Mercedes-Benz developed the CGI system, and Fiat developed the JTS system. Although the names are different, But they all represent direct injection in the gasoline cylinder.
HCCI (Homogeneous Charge Compression Ignition) homogeneous mixed air pressure combustion technology:
Like the traditional gasoline engine, the HCCI engine injects a very uniform ratio of air and fuel mixture into the cylinder. Conventional gasoline engines fire through SPARK PLUGs, igniting air and fuel mixtures to generate energy. However, the HCCI engine is different. Its ignition process is similar to that of a diesel engine. It is self-combusted by compressing the mixture with a piston to raise the temperature to a certain level.
EOBD (European On Board Diagnostics) car exhaust diagnostic system:
Euro III and Euro IV will be implemented nationwide in 2007 and 2010 respectively. After the implementation of the Euro III standard, the OBD online fault diagnosis software must be installed to monitor the working state of the vehicle emission control system.
CR (common rail system):
The common rail technology refers to a kind of oil supply method in which the injection pressure is generated and the injection process is completely separated from each other in a closed loop system composed of a high pressure OIL PUMP, a pressure sensor and an ECU, and the high pressure fuel pump delivers the high pressure fuel to the common fuel supply pipe through the high pressure oil pump. The oil pressure in the common fuel supply pipe is precisely controlled, so that the pressure of the high pressure fuel pipe is independent of the engine speed, and the diesel fuel supply pressure can be greatly reduced as the engine speed changes, thereby reducing the defects of the conventional diesel engine. The ECU controls the fuel injection amount of the injector, and the amount of fuel injection depends on the length of the fuel rail (common fuel supply pipe) and the opening time of the solenoid valve.
Double spark plug:
It is suitable for vehicles with small displacement. Each cylinder has two spark plugs arranged diagonally to achieve sequential phase ignition control. The double spark plug is designed to make the ignition more efficient, and at the same time increase the compression ratio of the engine, improve the combustion efficiency, and accelerate the combustion rate of the gas in the cylinder to improve the engine performance.
In order to increase engine power under certain conditions of displacement, the most effective way is to increase the fuel and provide enough air to support combustion. The turbocharged exhaust gas from the engine drives the turbine to rotate at a high speed, and then pushes the fan to press more air into the engine through a series of mechanical transmission mechanisms.
Variable intake manifold length:
The air necessary for combustion enters the cylinder through the intake manifold. Longer intake manifolds allow the engine to achieve greater torque at low speeds, but lower maximum output power at higher speeds; shorter intake manifolds allow the engine to achieve lower speeds at lower speeds Torque, but at high speeds there is a higher maximum output power. Through the two-stage variable intake manifold, it can ensure the effective length in the corresponding speed range, ensure the low torque has a large torque, and also has a high maximum output power in the high speed range, ensuring the engine at high speed. It has better acceleration when driving.
VCM (variable cylinder management) Honda variable cylinder management is a closed cylinder technology, variable cylinder management cylinder deactivation technology, which allows three of the six cylinders on the vehicle to be deactivated during cruising to further improve fuel efficiency.
EGR exhaust gas recirculation:
UP (single pump) system
WASTGATE (exhaust gas vent valve)
VGT (variable geometry section supercharger)
VNT (variable nozzle supercharger)
ECU (engine electronic control unit)
TCU (transmission electronic control unit)
HCU (hybrid electric control unit)
SOHC single overhead camshaft engine
DOHC double overhead camshaft engine
F.I.R.E integrated engine wholesale