29
2026
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07
Semi-trailer trucks can easily lose control with sudden braking, fixing braking safety is urgent
Semi-trailers can easily get into accidents due to uncoordinated braking systems, here are two cases we randomly found online.
In the video, a semi-trailer experiences 'jackknifing' while driving, and another one shows 'oversteering'. Similarly, both vehicles had accidents during emergency braking. Why do these types of accidents happen so often?
These two accidents seem completely unrelated, but both vehicles actually share a common brake system issue. Because of mismatched main trailer brakes and electronic assistance systems not working properly, most semi-trailers on the market have inconsistent braking, which is the direct cause of accidents during emergency stops.
Semi-trailers with brake safety issues may not be able to stop effectively in an emergency, which can lead to serious accidents like rear-end collisions or loss of control. Statistics show that in 2023, one person dies every minute in China due to traffic accidents. Among these accidents, trucks account for a very high proportion.
In our country, trucks only make up 10% of the total number of vehicles, yet they are responsible for a quarter of the accidents. On mountainous roads, 81% of truck-related accidents are linked to the truck's braking system. Although the braking systems of trucks have greatly improved with the popularity of hydraulic retarders and the integration of electronic aids like ABS, this is just a surface improvement.
Actually, judging from the comments on the short videos we've posted, at the user level, there's a lack of awareness and a reluctance to spend more on safety features. From the manufacturer's side, in order to get more profit per bike, they use poor-quality products. As for regulators, they only superficially check whether you have them, not how effective they are, leaving serious risks in the braking systems of semi-trailers.
Also, if the main braking system isn't well matched, some tyres might wear out early. I actually analysed this in a dedicated article before. Here's the original link:
Early brake wear could be due to a mismatch in the main attachment
The semi-trailer brake system doesn't match up, which on one hand increases operating costs for our vehicles, like tyres wearing out too early; on the other hand, the uncoordinated brakes can easily cause the vehicle to lose control during emergency stops, leading to accidents.
The braking system issues in semi-trailers have become an urgent problem in the industry. First, relevant departments should step up efforts to crack down on non-compliant companies and products and strengthen industry supervision; secondly, users should fully understand the importance of the brakes working together and raise their safety awareness; moreover, manufacturers should also self-regulate, improve product quality, strictly follow the national standards and regulations, and provide safe and reliable vehicles for users. Only through the joint efforts of society and continuous progress can the common matching problems in the semi-trailer industry be improved, creating a safer and more harmonious traffic environment.
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