Abstract:

The natures of decentralization， transparency and trust of blockchain technology bring an opportunity to solve the current problems in automotive industry： user privacy leakage， and poor service， opacity and irregularity in maintenance etc. The key to the application of blockchain in automotive field lies in the construction and fusion of vehicle ID and user credit system， and creating vehicle ID and completely recording the key information of the vehicle in its manufacturing and operation process will promote the normalization of the traditional automotive industrial chain， establish a reliable quality control system and optimized inventory dynamic management system for vehicle enterprises， and provide better services in repair， maintenance and used vehicle trading for users. By linking the vehicle ID and personal credit system in blockchain system， the original car sharing procedure can be reformed. In the future， the blockchain， as an underlying technology， combining with peripheral technologies such as internet of things and big data will achieve the safe interconnection of different intelligent equipment， and continuously enhance the processing capacity of blockchain technology to accelerate its application to autonomous driving and smart transportation.

Key words: blockchain, user credit, vehicle ID, used car trading, car sharing, safe interconnection