Why are the brakes so hard: Analysis of hot topics and hot content on the Internet in the past 10 days
Recently, "Why are the brakes so hard?" has become a hot topic on automotive forums and social media. Many car owners have reported problems such as excessively hard brake pedals and abnormal braking effects. This article combines the hot data of the entire network in the past 10 days, analyzes it from the three dimensions of technical reasons, user feedback and solutions, and provides structured data reference.
1. Statistics of hot topics (last 10 days)
| platform | Amount of related topics | heat index | Main discussion points |
|---|---|---|---|
| car home | 1,258 | 85 | Brake assist system failure |
| Zhihu | 632 | 72 | Electronic assist vs vacuum assist |
| 3,415 | 91 | New energy vehicle brake issues | |
| Douyin | 2,873 | 88 | Emergency braking case sharing |
2. Three major technical reasons for brake hardening
1.Vacuum assist system failure: The vacuum pump or pipeline of traditional fuel vehicles leaks, resulting in insufficient power assistance. Data shows that such failures account for 43% of cases.
2.Electronic power assist system delay: The electronic power-assist system commonly used in new energy vehicles may respond slowly at low temperatures or when the system is overloaded, accounting for 31%.
3.Abnormal brake pad/disc: Including excessive wear (17%), water slippage (6%) and thermal decay (3%).
| Fault type | Proportion | Typical symptoms |
|---|---|---|
| Vacuum assist failure | 43% | Pedal is extremely hard when starting cold |
| Electronic assist delay | 31% | No assistance during the first half of braking |
| Abnormal mechanical parts | 26% | Accompanied by abnormal noise/jitter |
3. Top 5 users’ high-frequency feedback
1. "Stepping on the brakes is like stepping on a rock, it requires all your strength" (52,000 likes)
2. "The brakes of a new energy vehicle become harder after going down a long slope" (38,000 discussions)
3. "The first few steps on the brakes are particularly hard on rainy days" (related video views 12 million times)
4. "The 4S store test said it was normal, but something was obviously wrong" (647 complaints)
5. "I could barely step on it in an emergency" (89 accident reports)
4. Professional solution suggestions
| Question type | Emergency treatment | long term solution |
|---|---|---|
| Vacuum assist failure | Double pedaling | Replace vacuum pump/check pipeline |
| Electronic assist abnormality | Restart vehicle system | Upgrade control software |
| brake pad problem | Continuous point brake water removal | Replace high-performance brake pads |
5. Latest Industry Trends
1. The General Administration of Quality Supervision, Inspection and Quarantine has launched a special investigation into the braking system of new energy vehicles, involving 12 brands.
2. A well-known car company released an OTA upgrade plan for the brake assist system, which is expected to cover 1.2 million models.
3. Data from third-party testing agencies show that the number of complaints about brake hardening increased by 27% year-on-year, and new energy vehicles accounted for 68%.
Conclusion:The problem of brake hardening involves driving safety. It is recommended that car owners conduct professional testing immediately when encountering abnormalities. At the same time, the industry needs to speed up the development of unified standards for electronic power-assist systems to ensure braking reliability from the source. The statistical period of the data in this article is from November 1 to 10, 2023. We will continue to pay attention to the development of the situation.
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