KCU Lite: lightweight vehicle control unit (Smart Module)
KCU Lite is a vehicle control unit launched by KopherBit for light-load/low-cost application scenarios. It provides a "Smart Module" distributed smart actuator architecture and supports multiple Connector pin assignment variants such as A2 / A2J / Smart PhaseA2 / Smart PhaseB1. It is integrated with the SC206E WIFI module and is suitable for lightweight applications such as E-Scooter, motorcycles, and body subsystems.
Summary
KCU Lite is a vehicle control unit product line launched by KopherBit for light-load and low-cost vehicle subsystems. It adopts the “Smart Module” distributed smart actuator architecture: the main control ECU and multiple Smart Modules cooperate through the internal communication bus to distribute the actuator drive to the module board, and the main control focuses on the control logic.KCU Lite provides multiple Connector pin variants (A2, A2J Main, Smart PhaseA2, Smart PhaseB1) and SC206E WIFI module integration options, and has been used in virtual E-Scooter Demo and lightweight body subsystem control.
Technical Role
KCU Lite’s design highlights:
- Lightweight and low cost: Compared with KCU GEN1 / GEN2, the I/O channels are more streamlined and the BOM focuses more on light-load applications.
- Smart Module decentralized architecture: Pull the high/low bit driver to the external Smart Module, and the main control and actuator communicate through the bus.Reduce the size of the main control board and improve I/O expansion flexibility.
- Multiple Connector variants: A2, A2J Main, Smart PhaseA2, Smart PhaseB1, corresponding to different stages and market needs.
- WIFI Connectivity: The optional SC206E WIFI module facilitates cloud connection and remote adjustment of small vehicles.
KCU Lite is suitable for cost-sensitive applications with medium I/O quantity requirements such as locomotives, E-Scooters, agricultural machinery, light industrial vehicles, and body subsystems.
Architecture
| Mods | Characters |
|---|---|
| Main MCU | Execute application layer SWC, sensor reading, and communication with Smart Module. |
| Smart Module | External smart actuator board, including HSD / LSD / sensor interface. |
| Internal Bus | Internal communication (CAN / SPI / custom) connecting the master and Smart Module. |
| Connector Variants | A2 / A2J / Smart PhaseA2 / Smart PhaseB1 correspond to different BOMs and markets. |
| SC206E WIFI Module | Optional wireless connection, supports cloud telemetry, OTA, and adjustment. |
| Vehicle communication | CAN / LIN, consistent with common bus lines in lightweight vehicles. |
Key Capabilities
- Smart Module distributed actuator control: Reduces the complexity of the main control board and improves I/O expansion flexibility.
- Multiple Connector Variants: Different pin plans can be selected according to the market and car model.
- WIFI Cloud Connection: Remote telemetry / OTA / adjustment is achieved through the SC206E module.
- AUTOSAR Classic compatible: KopherSAR + KopherConfig tool chain can be used to avoid developing from scratch.
- Low Cost BOM: Optimized for light load applications.
- Integrated with KCU series: share KopherBit BSW, UDS Bootloader, and diagnostic host computer.
Engineering Inputs Required
| Input | Purpose |
|---|---|
| Application scenarios | E-Scooter, locomotives, light vehicles, body subsystems. |
| Actuator list and current rating | Determine the number and type of Smart Modules. |
| Connector selection | A2 / A2J / Smart PhaseA2 / Smart PhaseB1. |
| 通讯需求 | CAN / LIN / WIFI 的使用组合。 |
| Cloud architecture (such as using WIFI) | MQTT / OTA Server / Cloud Telemetry Platform. |
| Security requirements | Do you need a simplified version of UDS, Secure Boot, TLS, etc. |
How KopherBit Supports This
- Hardware: KCU Lite main control board + Smart Module series.
- Basic software: KopherSAR (Classic) provides AUTOSAR compatible development process.
- Configuration: KopherConfig Configure the master and all Smart Modules at once.
- WIFI integration: SC206E module driver and cloud docking SDK.
- Reference Design: KCU Lite Onsite Demo (Virtual E-Scooter Vehicle Control) provides end-to-end examples.
FAQ
What is the difference between KCU Lite and KCU GEN2 Micro?
KCU GEN2 Micro is a streamlined version of the KCU GEN2 series. The main control is still TC387QP, with a small number of I/Os but full-featured CAN FD.KCU Lite is designed for lighter and lower-cost applications. It adopts Smart Module decentralized architecture, has simpler main control specifications and BOM, and is often used with WIFI modules.
What is a Smart Module?
Smart Module is an external smart actuator board that contains HSD/LSD/simple sensor interface and internal MCU. It communicates with the main control through CAN/SPI/custom bus.The advantage is that the main control board can be kept small and I/O expansion can be done in a modular manner.
Why are there variants like A2 / A2J / Smart PhaseA2 / PhaseB1?
Different variants correspond to different stages of design evolution and market demand.A2/A2J are the main version and J-type variant; Smart PhaseA2/PhaseB1 are the two development stages of the Smart Module series.The actual selection is subject to project requirements.
What cloud protocols does the WIFI module support?
The SC206E module is communication hardware, and cloud protocols (MQTT, HTTPS, custom TCP) are implemented by the application layer.KopherBit can help integrate typical cloud processes such as OTA, telemetry, and remote calibration.
Does it support UDS burning?
support.KCU Lite adopts KopherBoot UDS Bootloader (the streamlined version can be adjusted according to needs).Burning can be completed in CAN/CAN FD/WIFI (DoIP-like) through KopherUDS.
Is KCU Lite suitable for electric buses or commercial vehicles?
Not recommended.KCU Lite is designed for light load applications; it is recommended to use KCU GEN1 / GEN2 (Phase B) for electric buses and commercial vehicles.
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