0 Introduction Electric vehicles are efficient, clean, and sustainable transportation tools of the 21st century. They are also an important solution to the two prominent issues of the energy crisis and environmental pollution. The main power source for electric vehicles is the battery, which is also a key factor limiting the development of electric vehicles. … Read more
The voltage of electric vehicle batteries is increasing from 400V to 800V, and the voltage of large-scale energy storage system batteries is rising from 600V-900V to 1500V. Engineers face a dilemma when proposing hardware-in-the-loop (HIL) requirements for high voltage battery BMS: the number of battery cell channels versus the simulation effectiveness. When the number of … Read more
As a loyal Tesla fan, I was actually skeptical when Porsche officially launched the Taycan. The reasoning was simple: the Taycan is much more expensive than the Tesla Model S, yet has significantly shorter range. This is almost always the two points raised by every “critic” of the Taycan model. Although electric vehicles are not … Read more
Electric vehicles have now become the most common means of transportation, but little is known about how to maintain them. This time, the editor will take you into the core component of electric vehicles——the controller. The controller is the brain of the electric vehicle, controlling the motor’s start, operation, forward and reverse, speed, stop, and … Read more
Failure phenomenon: A “San’an” brand low-speed electric vehicle experienced a malfunction when the driver mistakenly disconnected the air switch controlling the main power supply while going downhill, causing the brushless DC motor to generate back electromotive force due to overspeed that could not be absorbed by the battery, resulting in damage to the controller due … Read more
The distributed battery management system of electric vehicles mostly uses a master control unit and several slave control units. Unlike most electric vehicle battery management systems that use a 12V battery for power supply, the BMS discussed in this article is directly powered by the power battery pack (total voltage of 72V). This not only … Read more