Cylinder deactivation is a process in which select cylinders of the internal combustion engine are deactivated when the full power of the engine is not required. Cylinder deactivation helps improve fuel economy and reduces CO2 emissions. Different OEMs use different methods to deactivate the cylinder according to the engine type. The engine does not run at its peak performance level when power requirements from the engine are low.
The global cylinder deactivation system market is expected to register moderate growth during the forecast period. It is estimated to grow from USD 4.6 billion in 2020 to USD 5.1 billion by 2025, at a CAGR of 1.9%. Market growth can be attributed to the increasing demand for environment-friendly and fuel-efficient vehicles. OEMs across the globe are focusing on developing more fuel-efficient vehicles than previous generation vehicles. The adoption of modern transmission systems in developing regions is also expected to drive the market for cylinder deactivation system.
Diesel engine cylinder deactivation can reduce fuel consumption up to 25% and maintain high temperature during low load operation. Cylinder deactivation makes it possible to operate a diesel engine at low loads without compromising its torque and power capabilities. This technology is also used at road loads to fulfil active diesel particulates (DPF) regulations. For instance, Eaton has introduced diesel cylinder deactivation (CDA) and early/late intake valve closing (EIVC/LIVC) to increase fuel efficiency. These technologies can operate at up to 3-4 bar BMEP at all speeds. Thus, emission reductions are achieved by improving aftertreatment thermal management. FEV Automotive’s cylinder deactivation is used in MD Trucks that are powered by a 7.7 l 6-cylinder diesel engine. As most of the heavy-duty vehicles have larger engines that run on diesel, cylinder deactivation can prove to be an effective fuel saving technology.
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Jacobs Vehicle Systems has partnered with Tula Technology to introduce Cylinder Deactivation (CDA) technology in medium- and heavy-duty commercial vehicle engines. This technology is designed for High Power Density (HPD) engine brakes that are used in the valvetrain to disable the opening of intake and exhaust valves. It benefits the engine by reducing camshaft friction, decreasing pumping losses in part-load conditions, and eliminating the need for the intake throttle, all of which result in overall improvement in fuel consumption by 20% while simultaneously increasing exhaust temperatures.
The overhead cam design is estimated to be the fastest growing market, by valve actuation method. As this design of valve actuation is preferred to pushrod design, the overhead cam design segment is expected to grow at a rapid pace during the forecast period. Overhead cam design has mechanical advantage over pushrod design. Also, the use of overhead cam design eliminates some of the moving parts and thus results in a reduction of weight and load on the engine.
The passenger vehicle is estimated to be the largest market, by vehicle type. Passenger vehicles include economy and mid-sized vehicles that are now equipped with more number of cylinders. Increased number of cylinders helps OEMs install the cylinder deactivation process. People across the globe want to buy fuel-efficient vehicles that are equipped with advanced technologies. Thus, the passenger vehicle segment is expected to dominate the cylinder deactivation system market.
North America is estimated to be the largest market for cylinder deactivation during the forecast period. Leading automakers in the region have already deployed cylinder deactivation technology. Also, North America is the largest market for light commercial vehicles. Sales of light commercial vehicles in the region have increased at a steady rate. Vehicle emission mandates by regulatory authorities have also fueled the demand for modern technologies. Hence, the North American region is expected to witness significant growth during the forecast period. OEMs and Tier I suppliers are innovating in the field of cylinder deactivation system for diesel engines. They can leverage this opportunity to create new revenue pockets, especially in North America and developing regions.
Cylinder Deactivation System Market by Component, No. of Cylinders (4 & 6 and Above), Valve Actuation Method (Overhead Camshaft & Pushrod Design), Fuel Type (Gasoline & Diesel), Vehicle Type (Passenger Vehicle & LCV), and Region - Global Forecast to 2025
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