Why can't the RPM go up?
1 Answers
Engine RPM not increasing may be caused by a dirty throttle position sensor or voltage imbalance leading to electronic throttle failure, resulting in the situation where the speed doesn't increase even when the accelerator is fully pressed. Below is an introduction to engine classifications: 1. Horizontally opposed engine: Also known as an H-type engine, its cylinders are horizontally arranged, giving it a naturally lower center of gravity compared to other engine layouts. Due to this horizontal arrangement, many components cannot be integrated, leading to high manufacturing costs. It is not widely recognized by most automakers. 2. Atkinson engine: It offers slightly higher gasoline combustion efficiency compared to traditional types, but also brings issues such as insufficient low-end torque at low speeds and inadequate power. At high speeds, the piston stroke is relatively long, making RPM increase too slow and acceleration poor. However, this engine is usually paired with an electric motor to cleverly compensate for its shortcomings, making vehicles equipped with this powertrain more fuel-efficient. 3. W18 engine: In 1998, Volkswagen acquired Bugatti to demonstrate its powerful design and manufacturing capabilities. Volkswagen forcibly added a six-cylinder engine to a V12 engine, creating an eighteen-cylinder engine. Combined with other configurations that were considered invincible at the time, it was indeed unparalleled for a while.
