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Camless System
1. What is Camless system ?
Car manufacturers around the world have different air distribution systems to increase engine performance such as: Honda with VTEC, Toyota with VVT-I, BMW with Vanos, Nissan with VVEL, Mitsubishi with Mivec… And now more advanced system is Camless system (Freevalve)
The Camless system, also known as fully variable valve actuation, offers the unique ability to have independent control of the intake and exhaust valves in an internal combustion engine.
For any engine load criteria, the timing of intake and exhaust can be independently programmed. Using AI, the system can then inteligently “decide” based on perceived driving conditions which one to use to maximize performance or minimize fuel consumption and emissions. This allows a greater degree of control over the engine which in turn provides significant performance benefits.
The Camless system, also known as fully variable valve actuation, offers the unique ability to have independent control of the intake and exhaust valves in an internal combustion engine.
For any engine load criteria, the timing of intake and exhaust can be independently programmed. Using AI, the system can then inteligently “decide” based on perceived driving conditions which one to use to maximize performance or minimize fuel consumption and emissions. This allows a greater degree of control over the engine which in turn provides significant performance benefits.
2. Advantages and disadvantage of Camless
* Advantage
- Reduced emissions
- Decreased fuel consumption
- Increased low end torque and power
- Simplified aftertreatment
* Disadvantage
- Expensive manufacturing cost
- Require high technology
- Expensive manufacturing cost
- Require high technology
3. Camless engines in cars
In April 2016, the Chinese car manufacturer Qoros presented a concept car incorporating Freevalve technology with the name QamFree
In April 2016, the Chinese car manufacturer Qoros presented a concept car incorporating Freevalve technology with the name QamFree
In March 2020, Koenigsegg Automotive AB announced its first four-seater car, the Gemera, which is powered by a sequentially turbocharged 2.0l inline-three engine in conjunction with three electric motors. Two of those electric motors, each of which makes 600 bhp, are on the rear wheels. The third motor is attached to the engine crankshaft and makes 400 bhp. Working with the motor to propel the front wheels is what Koenigsegg calls the Tiny Friendly Giant (TFG) engine. It is rated at 600 bhp and uses the camless Freevalve technology.
