17940675. VEHICLE AND CONTROL METHOD OF VEHICLE simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)

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VEHICLE AND CONTROL METHOD OF VEHICLE

Organization Name

TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor(s)

Yu Nagata of Tokyo (JP)

VEHICLE AND CONTROL METHOD OF VEHICLE - A simplified explanation of the abstract

This abstract first appeared for US patent application 17940675 titled 'VEHICLE AND CONTROL METHOD OF VEHICLE

Simplified Explanation

The abstract describes a vehicle system that includes multiple control devices and a DCM (Data Communication Module) that can wirelessly receive data from external sources to update the programs stored in the control devices. The system also includes a subsidiary ECU (Electronic Control Unit) and a master ECU, where the current program of the subsidiary ECU can be stored in the free space of the master ECU. The central ECU controls the updating process of the programs in both the master and subsidiary ECUs. Prior to updating the current program of the subsidiary ECU, the central ECU ensures that a backup of the current program is made in the free space of the master ECU.

  • The vehicle system includes multiple control devices and a DCM for wireless data reception and program updates.
  • The subsidiary ECU stores the current program, while the master ECU has free space to store the current program of the subsidiary ECU.
  • The central ECU controls the updating process of the programs in both the master and subsidiary ECUs.
  • Before updating the current program of the subsidiary ECU, a backup of the program is made in the free space of the master ECU.

Potential Applications

  • Automotive industry: This technology can be applied in vehicles to enable wireless updates of control device programs, improving functionality and performance.
  • Fleet management: The system can be used in fleet vehicles to remotely update control device programs, ensuring all vehicles have the latest software versions.

Problems Solved

  • Manual program updates: The technology eliminates the need for manual program updates in control devices, reducing time and effort required for maintenance.
  • Program backup: By automatically creating a backup of the current program before updating, the system ensures that the previous version can be restored if any issues arise.

Benefits

  • Efficiency: Wireless program updates save time and effort compared to manual updates, allowing for faster implementation of software improvements.
  • Reliability: The backup feature ensures that the previous program version can be easily restored, minimizing the risk of system failures or malfunctions.
  • Scalability: The system can be implemented in various control devices within a vehicle, providing a flexible and scalable solution for program updates.


Original Abstract Submitted

A vehicle includes: a plurality of control devices; and a DCM configured to wirelessly receive data from outside, the data being used to update programs stored in the control devices. A subsidiary ECU has a storage area in which a current program is stored. A master ECU has a free space in which the current program of the subsidiary ECU is storable. A central ECU controls an updating process of the programs in the master ECU and the subsidiary ECU. In a case where the current program of the subsidiary ECU is to be updated, the central ECU controls the master ECU and the subsidiary ECU such that, prior to the updating of the current program, the master ECU and the subsidiary ECU make a backup of the current program in the free space of the master ECU.

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