On automotive forums, it is often seen that car enthusiasts mention piston damage after ECU tuning. There has been much discussion about the pros and cons of ECU tuning, primarily focusing on methods (canned tunes, custom tunes, whether to use a dyno, etc.) and pricing. This article will discuss the technical reasons behind why some … Read more
Introduction Aluminum alloy is one of the most commonly used materials for lightweighting automotive body structures. It has been widely applied in mass production vehicles, and the application strategies and design concepts for aluminum alloys vary depending on different vehicle positioning and design. This article analyzes the different aluminum alloy application strategies using two models … Read more
The newly developed technologies include not only pure electric and fuel cell drive systems but also modern internal combustion engines using hydrogen and synthetic fuels. As in the previous annual meeting, Professor Stefan Pischinger (Ph.D. in Engineering), director of the Institute for Internal Combustion Engines at RWTH Aachen University, and Professor Lutz Eckstein (Ph.D. in … Read more
Typically, EPS consists of a torque sensor that detects the steering torque of the driver, an EPS ECU that calculates the assist torque based on the torque signal and controls the motor drive, a motor that generates assist, and a reducer that transmits the motor drive force to the steering mechanism. EPS Composition ▲ 1 … Read more
Attention Friends: “Vehicle Inspection and Maintenance Engineer Exam Study Network” has recently adjusted its public account platform for sharing exam knowledge points. Click on the top “ Vehicle Inspection and Maintenance Engineer Exam Study Network” → Click the top right corner “…” → Select “Set as Star ★ ”. After reading the article, remember to … Read more
CAN bus (Controller Area Network) is a serial multi-master controller area network bus, primarily designed to connect various controllers in a vehicle, enabling communication between the engine controller, transmission controller, ABS controller, body controller, instrument panel, and other controllers. The CAN bus system not only reduces the number of wiring harnesses in the vehicle, making … Read more
To begin with, let’s recall what the normal operating voltages of CAN_H and CAN_L are. When there are issues with the CAN bus, it is often accompanied by various faults, such as abnormal dashboard displays, the vehicle failing to start, or failing to turn off after starting, etc. We will mainly introduce the 8 common … Read more
5. Short Circuit of CAN L to Power (Positive) When a short circuit occurs between CAN L and the power (positive), due to the fault tolerance characteristics of the CAN bus, the entire CAN network may be unable to communicate or generate related fault codes. Because of the short circuit of CAN L to the … Read more
Sensor Everyone is familiar with sensors, right? The voice-activated lights and variable frequency air conditioners we use in our daily lives rely on sensors to perform irreplaceable roles. So let’s take a look at some small knowledge about sensors! Definition A sensor is a physical device or biological organ that can detect and sense external … Read more
Sensors are devices designed based on the physical, chemical, and biological properties and laws of materials. There are various types, and in the measurement and control field, a sensor designed based on a certain principle can simultaneously measure multiple non-electrical quantities. Sometimes, a single non-electrical quantity can be measured by various sensors based on different … Read more