Abstract: Embodiments of the present invention relate to the field of vehicle technologies, and disclose a method for establishing communication between a vehicle diagnosis device and a vehicle. The method is applied to a vehicle communication interface device. In the method, when a channel establishment instruction of the vehicle diagnosis device is received, a CAN controller in an idle state in at least two CAN controllers is determined, and then a communication parameter is set for the CAN controller in an idle state. Further, when a specified communication pin set of the vehicle diagnosis device is received, it is determined whether a CAN controller connected to the specified communication pin set is in an idle state.

Abstract: A state-of-charge acquisition method is applied to the charging device for charging an electric vehicle, and the method includes: acquiring an initial electric quantity data value upon start of charging of the electric vehicle with a VCI device; acquiring a charging current of a battery of the electric vehicle during a charging process; acquiring an electric quantity of the battery at a current moment on the basis of the charging current; and acquiring the electric quantity data value at the current moment on the basis of the initial electric quantity data, the electric quantity, and a rated total capacity of the electric vehicle, the electric quantity data value indicating a state-of-charge of the battery at the current moment. In this way, the electric quantity data value of the battery during the charging process can be obtained in real time.

Abstract: Embodiments of the present invention relate to automobile diagnostic methods, apparatuses, devices and systems, and a diagnostic connection devices. Embodiments include: a first interface connector module configured to read an operation performed by a user on an interface, and convert the operation into a corresponding diagnostic instruction; a first protocol converting module configured to convert the diagnostic instruction into standard transmission data corresponding to the diagnostic instruction; and a first software interface module configured to send the standard transmission data corresponding to the diagnostic instruction through the first communication unit.

Abstract: An embodiment of the present invention discloses an automobile diagnostic method, apparatus and a vehicle communication interface. The automobile diagnostic method is applied to a vehicle communication interface, the method including: acquiring a vehicle identification number of a vehicle based on a first communication protocol; determining a first diagnostic protocol according to the vehicle identification number; acquiring and storing to-be-diagnosed information of the vehicle based on the first diagnostic protocol; and after a connection is established to a diagnostic host, sending the to-be-diagnosed information to the diagnostic host. In the foregoing way, according to the embodiment of the present invention, efficiency of automobile diagnosis may be improved.

Abstract: A method, a device and a system for vehicle power battery auxiliary equilibrium is provided. The method includes: determining a degree value of a power battery inconsistency problem by a cloud platform according to data of the power battery; and according to the degree value of the power battery inconsistency problem, triggering by the cloud platform an auxiliary equilibrium charging strategy to be issued to a charging device, so that the charging device charges the power battery according to the issued auxiliary equilibrium charging strategy. According to the embodiments of the present application, it is possible to assist the equilibrium function of a vehicle-side battery management system, repair the power battery inconsistency problem, increase the full-power mileage of the electric vehicles, extend the service life of the power battery, and reduce the cost of using the vehicle. It does not affect the user’s daily vehicle use experience.

Abstract: The present invention provides an OBD interface bus type detection method and apparatus. The method includes: determining a first bus feature of a connection cable associated with a selected pin in an on-board diagnostics OBD interface; matching the first bus feature with an OBD interface bus library and determining a bus type of the connection cable associated with the selected pin; determining, according to the bus type of the connection cable associated with the selected pin, a second bus feature of the connection cable associated with the selected pin; and sending the second bus feature to a vehicle diagnostic instrument, to enable the vehicle diagnostic instrument to perform communications protocol scanning on the selected pin in the OBD interface according to the second bus feature.

Abstract: A method for detecting a storage battery of a vehicle includes: acquiring the noise intensity and battery information of the storage battery; according to the noise intensity and the battery information, selecting a battery detection scheme from among at least two preset candidate battery detection schemes. The battery detection scheme includes one among a discharge load value, detection frequency, duty cycle and detection time, the discharge load value and the detection frequency are related to the noise intensity, and the duty cycle and the detection time are related to the battery information; and detecting the storage battery according to the battery detection scheme. By means of the noise intensity and the battery information, a comprehensive selection of a battery detection scheme may be used to achieve the rapid and accurate detection of the storage battery even in circumstances of noise interference and/or poor health of the storage battery.

Abstract: A method for measuring a battery reserve capacity of a storage battery is applied to a battery detection device which is electrically connected to the storage battery by a Kelvin connector. The method includes: sending an input signal to a storage battery to control the discharging of the storage battery, and acquiring an output signal which is fed back, within an input duration of the input signal, by the storage battery regarding the input signal; determining a target battery parameter according to the output signal; acquiring a battery capacity table, wherein the battery capacity table includes a correlation between a battery parameter and a battery reserve capacity; and according to the battery capacity table and the target battery parameter, determining a battery reserve capacity corresponding to the target battery parameter. The measurement time for a battery reserve capacity of a storage battery is reduced, and the measurement efficiency is improved.

Abstract: The present invention provides a vehicle bus-based communication method and apparatus, a computer device and a storage medium. The vehicle bus-based communication method includes: monitoring data flows transmitted through a vehicle bus by vehicle electronic control units; determining undetected data flows in to-be-obtained data flows when the monitoring reaches a first time length; broadcasting data flow obtaining requests through the vehicle bus, the data flow obtaining requests specifying queries for the undetected data flows; and obtaining data flows that are fed back through the vehicle bus in response to the data flow obtaining requests. When data flows of a vehicle are obtained through a vehicle bus, data flows on the vehicle bus are first obtained in a monitoring manner, thereby ensuring data flow obtaining efficiency.

Abstract: Embodiments of the present invention relate to the field of vehicle technologies, and disclose a method for establishing communication between a vehicle diagnosis device and a vehicle. The method is applied to a vehicle communication interface device. In the method, when a channel establishment instruction of the vehicle diagnosis device is received, a CAN controller in an idle state in at least two CAN controllers is determined, and then a communication parameter is set for the CAN controller in an idle state. Further, when a specified communication pin set of the vehicle diagnosis device is received, it is determined whether a CAN controller connected to the specified communication pin set is in an idle state.

Abstract: An embodiment of the present invention discloses an automobile diagnostic method, apparatus and a vehicle communication interface. The automobile diagnostic method is applied to a vehicle communication interface, the method including: acquiring a vehicle identification number of a vehicle based on a first communication protocol; determining a first diagnostic protocol according to the vehicle identification number; acquiring and storing to-be-diagnosed information of the vehicle based on the first diagnostic protocol; and after a connection is established to a diagnostic host, sending the to-be-diagnosed information to the diagnostic host. In the foregoing way, according to the embodiment of the present invention, efficiency of automobile diagnosis may be improved.

Abstract: The present invention relates to the field of data decryption technologies, and in particular, to a data decryption method and apparatus, and an electronic device. The method includes: obtaining, by a control module, a file of an encrypted application and encrypted control data; sending the obtained file of the encrypted application to an encryption module; and decrypting, by the encryption module, the encrypted control data to obtain decrypted control data. This implementation improves the difficulty and costs for decrypting data, and there will be no delay in the response and processing of other functions with high real-time requirements, thus ensuring smooth running of all functions.

Abstract: Embodiments of the present invention relate to an automobile diagnostic method, apparatus, device and system, and a diagnostic connection device. The apparatus includes: a first interface connector module configured to read an operation performed by a user on an interface, and convert the operation into a corresponding diagnostic instruction; a first protocol converting module configured to convert the diagnostic instruction into standard transmission data corresponding to the diagnostic instruction; and a first software interface module configured to send the standard transmission data corresponding to the diagnostic instruction through the first communication unit.

Abstract: The present invention provides an OBD interface bus type detection method and apparatus. The method includes: determining a first bus feature of a connection cable associated with a selected pin in an on-board diagnostics OBD interface; matching the first bus feature with an OBD interface bus library and determining a bus type of the connection cable associated with the selected pin; determining, according to the bus type of the connection cable associated with the selected pin, a second bus feature of the connection cable associated with the selected pin; and sending the second bus feature to a vehicle diagnostic instrument, to enable the vehicle diagnostic instrument to perform communications protocol scanning on the selected pin in the OBD interface according to the second bus feature.

Abstract: The present invention provides a vehicle bus-based communication method and apparatus, a computer device and a storage medium. The vehicle bus-based communication method includes: monitoring data flows transmitted through a vehicle bus by vehicle electronic control units; determining undetected data flows in to-be-obtained data flows when the monitoring reaches a first time length; broadcasting data flow obtaining requests through the vehicle bus, the data flow obtaining requests specifying queries for the undetected data flows; and obtaining data flows that are fed back through the vehicle bus in response to the data flow obtaining requests. When data flows of a vehicle are obtained through a vehicle bus, data flows on the vehicle bus are first obtained in a monitoring manner, thereby ensuring data flow obtaining efficiency.