Service Overview
Wengge Technology specializes in CAN (Controller Area Network) bus development services, offering a comprehensive solution that spans from the implementation of underlying protocol stacks, hardware interface design, to system-level application optimization. Supporting standards such as CAN 2.0A/B, CAN FD (Flexible Data Rate), and CAN XL, it accommodates both high-speed (1Mbps-10Mbps) and low-speed (10kbps-1Mbps) communication needs. Integrating core functionalities like error detection, arbitration mechanisms, and network management, it covers areas like automotive electronics, industrial automation, new energy, and rail transit, assisting customers in building highly reliable and real-time distributed control systems.
Service Content
Development and optimization of CAN protocol stack
Implement CAN 2.0A/B and CAN FD protocol stacks, support standard frames (11-bit ID) and extended frames (29-bit ID), optimize data padding, CRC verification, ACK response, and other processes to ensure communication reliability (BER<10^-12).
Develop CAN FD high-speed mode (up to 10Mbps), integrate dual sampling point technology, enhance data transmission efficiency, support single frame transmission of up to 64 bytes of data, and meet high bandwidth demand scenarios.
Integrated error handling mechanisms (such as active errors, passive errors, and bus shutdown recovery) support error statistics and logging, facilitating fault diagnosis and system maintenance.
Hardware interface and transceiver design
Customized CAN controller interface circuit, integrating mainstream CAN transceivers such as TJA1050 and TJA1145, supports the ISO 11898 standard, is compatible with differential signal transmission (CAN_H/CAN_L), and has a 30% improvement in anti-interference capability.
Design a high-reliability hardware architecture that integrates ESD protection (HBM 8kV), common mode choke coil (CMCC), and TVS diode. It supports wide temperature operation from -40°C to 125°C and is suitable for harsh environments such as industrial and automotive applications.
Develop an isolated CAN interface using magnetic or optical coupling technology to achieve electrical isolation (isolation voltage > 2500V), prevent ground loop interference, and enhance system safety.
CAN网络管理与诊断工具开发
开发CAN总线监控与分析软件,支持实时数据采集、波形显示、错误统计及协议解析(如DBC文件解析),兼容PCAN、ZLG等主流硬件设备。
集成UDS(Unified Diagnostic Services)协议栈,支持ECU刷写、故障码读取(DTC)、数据流监控等功能,满足汽车电子诊断需求。
提供CANoe/CANalyzer二次开发接口,支持客户定制化测试脚本(如CAPL语言),实现自动化测试与生产下线检测(EOL)。
多节点通信与冗余设计
开发CAN总线仲裁算法,优化多节点竞争时的优先级分配,确保高优先级帧(如紧急制动信号)实时传输,延迟<1ms。
设计双CAN总线冗余架构,支持主备通道自动切换,故障恢复时间<50ms,提升系统可用性至99.999%。
集成网络管理协议(如NMv2),支持节点唤醒、睡眠及网络休眠模式,降低系统功耗(静态电流<10μA)。
测试与认证支持
应用场景
汽车电子与智能驾驶
工业自动化与机器人
新能源与电力电子
轨道交通与航空航天
医疗设备与科研仪器
服务优势
全速率覆盖与协议兼容
超低延迟与高可靠传输
强环境适应性
全栈开发与定制能力
安全与认证保障
案例介绍
案例一:某新能源汽车BMS系统CAN FD接口开发项目
稳格科技为某知名车企开发CAN FD接口方案,采用NXP S32K144芯片支持高速电池数据采集(如电压、温度),通过信号完整性优化实现100米无误码传输。项目实施后,BMS系统数据刷新率提升至1kHz,延迟降低至80μs,已应用于量产车型,年产量超10万辆。
案例二:某工业机器人多轴同步控制CAN总线开发项目
稳格科技为某机器人厂商定制隔离型CAN接口,集成TJA1145收发器与磁耦合隔离技术,支持六轴机器人关节的实时同步控制(同步精度<50μs)。方案应用于汽车焊接生产线,故障率降低70%,年维护成本节省超80万元。