System Architecture
- Telematics Control Unit (TBOX) architecture for commercial EV, ECU, and automotive software integration.
- Modular hardware, basic software, application software, calibration, and validation workflow.
TBOX + VCU
KCU TBOX
An integrated telematics box and vehicle controller module for lightweight EVs and industrial mobility equipment, combining real-time control, connectivity, positioning, and OTA updates.
Positioning
An integrated telematics box and vehicle controller module for lightweight EVs and industrial mobility equipment, combining real-time control, connectivity, positioning, and OTA updates.
One board, two functional domains: TBOX connectivity and VCU control in a single unit.
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 ASIL-B ready architecture and diagnostic protection.
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
VCU Core
| Processor | Automotive 32-bit ARM Cortex-M7 MCU, 160 MHz, ASIL-B ready |
|---|---|
| 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 |
Vehicle I/O
| 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 |
Connectivity
| 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 |
Power, Mechanical & Environment
| 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
VCU I/O scheduling for ADC, DI, frequency capture, PWM, and sensor supply monitoring.
CAN 2.0B / CAN-FD messaging and watchdog-based diagnostics.
LTE connection management with MQTT / HTTP(S) / TCP / UDP / CoAP.
BLE pairing, Wi-Fi setup interface, GNSS NMEA parsing, and position capture.
Dual OTA for TBOX + VCU, local logging, offline buffering, and resend.
Validation & Certification
ISO 16750-2 / -3 / -4 automotive electrical, mechanical, and climate validation.
CISPR 25 Class 3, ISO 11452-2 / -4, ISO 7637-2 / -3, and ISO 10605 EMC targets.
Wireless certification plan: NCC for Taiwan; TELEC / JATE for Japan.
Quality targets: 10 years / 150,000 km design life, MTBF ≥ 50,000 hours, AEC-Q100 / AEC-Q200 component strategy.
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.
Automotive Product Category
Telematics Control Unit (TBOX)
KCU TBOX supports connected-vehicle telematics, remote monitoring, positioning, cloud data, OTA, and integration with vehicle control systems.
Application Scenarios
Telematics GNSS positioning OTA updates Fleet management Commercial EV remote monitoring
Communication Interfaces
- CAN, CAN FD, LIN, Ethernet, UDS diagnostics, calibration, and vehicle-network integration where applicable.
- Supports integration with VCU, EVCC, BMS, BCM, gateway, charger, and engineering tools.
Functional Safety
- Designed for automotive engineering programs that consider ISO 26262, diagnostics, monitoring, and fail-safe behavior.
- Supports safety-oriented requirements traceability, validation, and production integration planning.
Cybersecurity
- Supports ISO 21434-oriented cybersecurity planning, secure update flow, access control, and diagnostic protection.
- Can integrate with secure boot, secure communication, OTA, and vulnerability-management workflows.
OTA / Diagnostics
- Supports UDS diagnostics, flashing, calibration, test automation, and OTA-ready service workflows when integrated with the KopherBit toolchain.
- Engineering evidence can include traces, reports, network definitions, and ECU validation outputs.
Integration Capability
- Can be integrated with AUTOSAR, BSW, SWC, RTE, MCAL, BMS, EVCC, BCM, and commercial EV electronics programs.
- Suitable for OEM, Tier1, prototype vehicle, electric bus, truck, and specialty vehicle engineering workflows.