Control method and system for engine control unit to manage loan vehicle

Abstract

The invention provides a control method and system for an engine control unit to manage a loan vehicle. The control method comprises the following steps: GPS equipment receives a command sent by a management platform; a search request command is sent to ECU; the ECU generates a random number for encryption verification and returns an encryption verification result after receiving a search requestcommand sent by the GPS equipment; the GPS equipment sends heartbeat or a command to the ECU according to an encryption verification result returned by the ECU; and after receiving the heartbeat or command, the ECU responds to and executes the successfully encrypted related command of the GPS equipment, and sends the execution condition to the GPS equipment. Due to a random number generation function and an algorithm function for generating random sequence, the difficulty of artificial decryption is increased, and encryption interaction is strict, and cracking is not easy; and command receiving and engine operation condition controlling can be effectively achieved, and effective supervision on loan purchasing vehicles is achieved, and the control method is suitable for large-scale application.

Description

technical field [0001] The invention relates to the technical field of vehicle electronic control, in particular to a control method and system for managing a loan vehicle by an engine control unit. Background technique [0002] With the change of consumption concepts, purchasing vehicles by installment payment and consumption in advance not only reduces the economic pressure of consumers, but also allows them to enter the market in advance and obtain benefits. It reduces the investment cost of consumers and increases the sales volume of vehicles. [0003] But dealers need to have a way to restrain consumers who buy cars with loans to ensure that they repay their loans on time. If the consumer fails to repay the loan on time, the dealer can use this restraint method to control the corresponding sold vehicle from not working normally, thereby urging him to repay the loan. [0004] The existing control method for managing loan vehicles has a simple encryption algorithm. Some...

AI Technical Summary

Problems solved by technology

[0005] For the existing control method for managing loan vehicles, the encryption algorithm is simple. Some encrypt and verify the GPS device at the power-on stage. After the verification is successful, the periodic control command interaction is started, and the encryption and control commands are separated. In this way, non-encrypted verification The gap time is longer, and the risk of artificial cracking is greater; between the GPS device and the engine control unit, there are only control commands or heartbeats, which is even more unsafe. The present invention designs a control method for the engine control unit to manage loan vehicles It is very practical and necessary to facilitate the platform to manage the sold loan vehicles

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