KCU TBOX
An integrated telematics and vehicle-control module for lightweight EVs and industrial mobility, combining real-time control, connectivity, positioning, and OTA.
Positioning
An integrated telematics and vehicle-control module for lightweight EVs and industrial mobility, combining real-time control, connectivity, positioning, and OTA.
This page covers KCU TBOX, the integrated TBOX + VCU variant: one board combines the connectivity and vehicle-control domains. The standalone TBOX follows a separate product specification.
Simplifies E/E architecture, shortens wiring, and lowers integration cost.
Designed for Taiwan launch with Japan market regulatory compatibility in mind.
Key Advantages
High Integration
Vehicle control, 4G LTE, Wi-Fi, BLE, GNSS, and CAN replace multi-box designs.
Automotive Design
Designed around ISO 16750, CISPR 25, and ISO 11452 environmental and EMC validation.
Real-Time Control
Automotive ARM Cortex-M7 MCU with watchdog diagnostics; the controller safety target is established through project HARA, system design, and validation.
Remote Operations
MQTT / HTTP(S), GNSS positioning, offline buffering, and OTA for both TBOX and VCU.
System Architecture
VCU Domain
Automotive MCU, SBC power management, CAN, analog/digital/frequency inputs, and high/low-side drivers.
TBOX Domain
LTE Cat.1, Wi-Fi 2.4 GHz, Bluetooth LE, GNSS, Nano SIM, and antenna interfaces.
Power & Protection
8V-36V operating range, reverse polarity protection, transient protection, sleep mode, and load dump tolerance.
Specifications
| Processor | Automotive 32-bit ARM Cortex-M7 MCU, 160 MHz; the vehicle safety target is established through HARA, system design, and validation |
|---|---|
| Memory | 4 MB Flash / 512 KB SRAM |
| Communication | CAN 2.0B / CAN-FD x 2 up to 5 Mbps; UART x 1 |
| Software Architecture | AUTOSAR architecture |
| Sensor Supply | 5.0V ±2% x 2, 50 mA per channel, short/overcurrent protection |
|---|---|
| Analog Input | 4 channels, 0-5V, 12-bit, ±1% FSR |
| Digital / Frequency Input | Digital x 4; Frequency x 2, 1 Hz-20 kHz, ±0.1% |
| Power Drivers | Low Side PWM x 4; High Side PWM x 2, 3A continuous, 100 Hz-25 kHz |
| LTE Cat.1 | 3GPP Release 11, 10 Mbps DL / 5 Mbps UL |
|---|---|
| Bands | Taiwan B1/B3/B7/B8/B28; Japan B1/B3/B8/B18/B19/B26/B28/B41 |
| Wi-Fi | IEEE 802.11 b/g/n 2.4 GHz, STA + SoftAP, WPA2-PSK / WPA3-SAE |
| Bluetooth LE | Bluetooth 5.x, GATT Server/Client, Peripheral/Central |
| GNSS | GPS / GLONASS / QZSS, ≤ 2.5 m CEP, up to 10 Hz |
| Input | 12V DC nominal, 8V-36V operating range, 42V load dump |
|---|---|
| Sleep Current | ≤ 2 mA @ 12V deep sleep |
| Housing | PC/ABS |
| Temperature | -40°C to +85°C |
| Connector / Weight | Automotive sealed connector, target weight < 300 g |
Software Functions
Validation & Certification
Applications
Fleet Management
Send location, speed, and battery status to the cloud and receive remote commands.
Shared Mobility
BLE unlocking, GNSS positioning, and OTA maintenance in one control and connectivity module.
EV Monitoring
Read BMS and motor controller data over CAN and upload it to a cloud dashboard.
Industrial Vehicles
Track operating hours, location, and remote diagnostics for field equipment.
Need sample evaluation or custom I/O?
The TBOX + VCU module can be tailored by vehicle type, bands, I/O configuration, and regulatory targets.