产品介绍
特征及优势 Feature and benefits
TMAP可以提供两个信号
The TMAP sensor provides 2 outputs
来源于压力感应元件并经芯片处理后的进气绝对压力信号
Intake manifold absolute pressure output /Derived from a MEMs based sensing element
来源于热敏电阻的进气温度信号
Intake manifold air temperature output / Provided by a NTC thermistor Together with information of cylinder volume, we can calculate the air mass.
外观和客户接口可以与Bosch产品兼容
Performance and customer interface compatible with Bosch TMAP
单芯片解决方案，电路单元利用SMT 技术贴装
Single chip solution ，SMT for EMA fabrication process
利用NTC电阻进行温度测量，电阻焊进行NTC 组装
NTC thermistor for temperature measurement, resistance welding used for assembly
利用钢球技术进行通气孔密封，激光打标以得到更好的追溯性
Steel ball for vent hole sealing, laser marking for better traceability
根据客户要求，多种量程可选（10-115,10-250,10-300,15-300,20-300,50-400kpa abs）
Different pressure ranges are available on customer request
产品作用 Application
根据TMAP输出信号和气缸/歧管容积，ECU可以得到进气质量，与燃油压力信号配合，ECU可以得到空气燃油比，从而通过调节喷油时间来获得最佳空气燃油比。
With information of fuel pressure sensor, ECU can calculate the ratio of air & fuel, increase or reduce fuel injecting time to get the optimal ratio of air & fuel.
技术参数 Functional Characteristics
参数PARAMETER | 符号NOTE | 最小值MIN. | 额定值NOM. | 最大值MAX. | 单位UNITS |
工作温度 | T | -40 | 130 | ℃ | |
压力测量范围 PRESSURE RANGE | P | 10 | 115 | kPa | |
电源电压 | Vcc | 4.5 | 5 | 5.5 | V |
电源电流 | Icc | 8 | 10 | Ma | |
输出负载电流 | IL | -1 | 1 | mA | |
负载电阻 | Rpull-up | 5 | 59 | 100 | kΩ |
Rpull-down | 5 | 59 | 100 | kΩ | |
额定输出电压 | Vout | 8 | 93 | %Vcc | |
输出电压上限值 | VCL-HI | 4.77 | 4.8 | 4.83 | V |
输出电压下限值 | VCL-LO | 0.27 | 0.3 | 0.33 | V |
整体精度误差 | Err | 1.6 | kPa | ||
压力响应时间 | 从10%到90%的最输出电压T 10/9010% TO 90% OF THE FINAL OUTPUT VALUE | 0.65 | 1 | ms |
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