REXEV Begins API Integration with Mitsubishi Motors' Vehicle Data Platform
~Utilizing real-time data from 'eK X EV' to provide a more precise EV car-sharing system~
📋 Article Processing Timeline
- 📰 Published: April 2, 2026 at 19:00
- 🤖 AI Analyzed: June 2, 2026 at 12:59 (1457h 59m after Published)
REXEV Inc. (Headquarters: Chiyoda-ku, Tokyo; Representative Director: Ken Watabe; hereinafter 'REXEV'), which provides EV introduction support and develops EV energy management systems, has commenced vehicle data integration via API with 'Mobility Service Platform' provided by Mitsubishi Motors Corporation (hereinafter 'Mitsubishi Motors').
This integration will enable REXEV's EV car-sharing system to acquire and utilize real-time vehicle data, such as the State of Charge (SoC) of Mitsubishi Motors' light EV 'eK X EV'.
Car-sharing services utilizing this function will be progressively launched starting in March 2026. This is REXEV's first commercial operation of EV car-sharing utilizing API integration with connected data provided by an automotive manufacturer. This integration is expected to simplify the configuration of on-board devices (hereinafter 'on-board units') by allowing some vehicle data acquisition, traditionally handled by aftermarket on-board units, to be replaced by the automotive manufacturer's connected functions, thereby improving service operational stability and reducing maintenance load.
The vehicle data acquired through this integration will be utilized for various services, including smart chargers, Flemobi, and car-sharing, primarily focusing on energy management.
Background and Purpose of this Integration
Traditionally, EV car-sharing generally required the installation of on-board units to monitor vehicle charge levels and status. However, these devices incurred installation costs and presented challenges due to varying data acquisition accuracy across vehicles, hindering large-scale deployment.
This integration allows for direct data acquisition via API from Mitsubishi Motors' 'Mobility Service Platform', enabling high-precision vehicle data management without additional devices.
This will improve the accuracy of energy management, leading to optimized EV operation and advanced vehicle reservation management.
Furthermore, eliminating the need for on-board unit installation will reduce initial introduction costs and user burden, with future expectations for expanding target vehicle models and flexible service deployment.
Benefits of Data Integration
1. Advanced Energy Management
Utilizes real-time charge level data to optimize charging control and improve power utilization efficiency.
2. Reliable Reservation Management
Accurately calculates drivable range based on real-time charge levels, preventing issues caused by insufficient charge.
3. Reduced Operational Load through Simplified On-board Unit Configuration
For car-sharing use, API integration eliminates the need for on-board units to acquire vehicle data, allowing them to focus on basic functions like key control. This reduces the risk of malfunctions and configuration errors, leading to improved operational stability.
4. Smoother New Model Support
Since acquired data is standardized to some extent by the manufacturer, individual development or settings for each vehicle model are not required on the on-board unit side, reducing the burden of supporting new models.
5. Efficient Vehicle Management
Centralized management of vehicle location and status within the system reduces maintenance man-hours.
6. Seamless Introduction
Utilizing the connected functions installed in the 'eK X EV' reduces the installation and initial setup processes for on-board units, enabling rapid service launch.
Future Outlook
REXEV will expand the utilization of vehicle data through this integration to various services, primarily focusing on energy management.
This function is already being utilized in the EV car-sharing business in Okazaki City, Aichi Prefecture, and will serve as a foundation for future service development.
REXEV will continue to deepen its collaboration with Mitsubishi Motors, contributing to the realization of a sustainable society by integrating energy management and mobility services.
*Details of Okazaki City's initiative 'Okazaki Public EV Share' can be found on the following page:
https://www.city.okazaki.lg.jp/shisei/koho/1006195/1006358/1014373/1014599.html
Mitsubishi Motors' press release on this matter can be found on the following page:
https://www.mitsubishi-motors.com/jp/newsroom/newsrelease/2026/20260331_1.html
Contact for inquiries regarding this matter
REXEV Inc. Public Relations
Tel: 03-3525-8008 E-mail: info@rexev.co.jp
FAQ
What does this API integration enable?
It enables real-time acquisition of vehicle data, such as the charge level of Mitsubishi Motors' 'eK X EV', allowing for the provision of a highly accurate EV car-sharing system.
When will this integrated service be available?
Car-sharing services utilizing this function will be progressively launched starting in March 2026.
What are the benefits of no longer requiring on-board devices?
It is expected to reduce initial introduction costs, lessen the burden on users, improve service operational stability, reduce maintenance load, and streamline new model compatibility.