【应用】思瑞浦CAN FD收发器TPT1043用于扫地车推力杆控制器，通讯速率可达5Mbps

时间： 2023-03-15 来源：世强

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全自动扫地车适用于车间、仓库、小面积户外等场所的清扫保洁，边刷将垃圾扫至中间，下置滚刷将垃圾直接抛扫进垃圾箱，内置吸尘过滤装置，清扫、收集、控尘一次性完成，适用于500~5000㎡的场所使用。推力杆控制器是扫地车上重要控制器，通过推力杆控制器采集模拟量,实现数字量的DI/O，同时驱动电机，从而控制扫地车的行进方向，传统的推力杆控制器与整车控制器通过CAN总线来通讯，将数据传到整车控制器并接受整车控制器的指令，此扫地车仅用于非公路用途，行业标准参照工业设备，采用某进口品牌工业级CAN收发器器件设计。

随着控制器节点数量的增多，控制器之间需要传输和交换的数据信息量，也越来越大。传统的CAN总线，由于最大只能达到1Mbps的数据传输带宽速率，已经越来越难以满足这样的大数据传输需求了。随着扫地车智能控制器之间通讯数据量越来越大，扫地车系统有智能化和国产化趋势，甲方考虑到供应的安全性和性能提升需求，提出优化设计推力杆控制器。

本文推荐采用思瑞浦3PEAK推出的CAN FD收发器 TPT1043，将CAN总线升级为CANFD，在强电磁干扰环境下实现了智能化系统控制器之间的高速通讯。

推力杆控制器系统框图如下：

思瑞浦CAN FD收发器TPT1043具备高抗干扰能力及户外宽温下高速通讯的特点，实现推力杆控制器长期可靠稳定的工作，满足了系统智能化的升级需求。

CAN FD收发器TPT1043应用优势：

1、通讯速率高

TPT1043支持CANFD协议、完全符合ISO 11898-2:2016国际标准，可以实现CAN FD通信发送和接收、电平转换的功能，数据传输速率高达5Mbps，满足了整车控制器和推力杆控制器之间高速通讯的需求。

2、抗干扰能力强

TPT1043 IEC61000-4-2测试标准下，可以高达±12kV接触放电。强静电放电ESD下保证CANFD总线的通讯可靠性；

3、更宽的工作温度

工作温度-40到150℃，可以满足扫地车在户外夏天和冬天各种恶劣现场的温度要求。

4、待机模式下更低的功耗

支持STANDY待机模式，此模式下待机和休眠状态下功耗只有2μA待机模式，通过CANFD总线唤醒源识别的本地和远程唤醒。

5、总线故障保护电压广安全性高

扫地车的CANFD总线对器件可靠性要求很高，TPT1043的总线故障保护电压达到±70V，可以承受更高的浪涌电压，实现CANFD总线安全性要求。

综上所述，思瑞浦3PEAK作为国产模拟器件著名厂商，推出CAN FD收发器TPT1043，助力扫地车推力杆控制器升级设计，满足系统对于功能安全的要求且降低了成本，扫地车CAN收发器产品成本下降5%以上，提高了系统的可靠性和抗干扰能力；思瑞浦3PEAK3PEAK代理商世强也将为客户提供强大技术服务和支持。

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IQ(Typ.)(1 Channel)(μA)

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