What is the reason for the flashing of the EVP in new energy vehicles?
2 Answers
It may be due to the power output of the motor being restricted because of a low battery in the power battery. Below is a relevant introduction to new energy vehicles: Introduction: New energy vehicles refer to automobiles that use unconventional vehicle fuels as power sources (or use conventional vehicle fuels with new onboard power devices), integrating advanced technologies in vehicle power control and driving, resulting in advanced technical principles and featuring new technologies and structures. Types: New energy vehicles include four major types: hybrid electric vehicles (HEV), battery electric vehicles (BEV, including solar-powered vehicles), fuel cell electric vehicles (FCEV), and other new energy vehicles (such as those using supercapacitors, flywheels, and other high-efficiency energy storage devices). Unconventional vehicle fuels refer to fuels other than gasoline and diesel.
I've been driving new energy vehicles for several years. When the EVP indicator light flashes, it usually indicates an issue with the electronic vacuum pump. This pump assists with brake boosting, and the flashing light may mean the pump itself is faulty, there's a loose or corroded wire connection, or the battery is dead affecting power supply. Once during a long-distance trip, the light suddenly started flashing, and I found that the connector was clogged with dust causing poor contact—cleaning it fixed the problem. However, sometimes the issue can be worse, such as the pump overheating and blowing a fuse, leading to brake boost failure and a stiff brake pedal, which is extremely dangerous, especially at high speeds where stopping distance increases and accidents become more likely. I recommend pulling over immediately to check the fuse and connections. If you're not mechanically inclined, don’t risk driving to the repair shop. During regular maintenance, keep the area around the pump clean and avoid water ingress, and replace the pump every two years as a preventive measure. This type of failure is common in electric vehicles because, lacking an engine vacuum source, they rely entirely on the EVP for brake assistance. Ignoring the warning light could lead to major repairs or accidents—safety first.
