Multi-channel dynamic signal analyzer for research on advanced automotive belt drive systems of micro hybrid vehicles

RTI提案的目的是支持我在NSERC发现拨款申请中描述的关于微型混合动力汽车的先进汽车皮带驱动系统的研究计划。微型混合动力汽车是最接近传统汽车的一种混合动力汽车。在微型混合动力汽车中，将引入一种先进的附件皮带驱动系统，其中交流发电机将被一种名为集成起动器-发电机(ISG)的新电子设备取代。ISG既是起动器又是发电机，取代了传统车辆中的两个独立单元。装有ISG的汽车会在怠速时自动关闭发动机，并在加速踏板被按下时迅速重新启动发动机。据估计，使用ISG可能最高可降低10%的油耗，减少高达15%的二氧化碳排放。据了解，微型混合动力汽车中的先进附件皮带驱动系统通常被称为皮带驱动集成起动机-发电机(B-ISG)系统。B-ISG的概念产生于2000年，并引起了汽车行业的强烈兴趣，因为B-ISG只需对传统汽车进行最小限度的系统重新设计和最少的硬件更改，从而提供了一种经济有效和快速的解决方案，以满足新的环境标准。然而，B-ISG面临着一个尚未解决的重大技术挑战：当ISG用作起动器时，会产生非常高的皮带张力，导致皮带快速磨损和皮带寿命大大缩短。他说，我的发现拨款中提议的设备的目标是在基本的B-ISG系统上进行实验，以测量和评估曲轴/ISG跨度中的张力水平。实验装置将由五个皮带轮组成：一个曲轴皮带轮、一个ISG皮带轮、一个附属皮带轮和两个张紧轮。实验将需要至少五个力传感器、五个旋转扭矩传感器、五个转速传感器、两个加速度传感器、一个速度传感器、两个位移传感器和两个输入电机。因此，本提案要求使用32通道动态信号分析仪，以满足多路数据采集和数据分析的要求。

The objective of the RTI proposal is to support my research program described in my NSERC Discovery Grant application on advanced automotive belt drive systems of micro hybrid vehicles. Micro hybrid vehicles are a type of hybrid vehicles closest to the conventional vehicles. In micro hybrid vehicles, an advanced accessory belt drive system will be introduced in which the alternator is replaced by a new electric device called Integrated Starter-Generator (ISG). ISG functions as both a starter and a generator, replacing the two separate units in conventional vehicles. A car equipped with an ISG will automatically shut off the engine during idling and quickly restart the engine as the acceleration pedal is depressed. It is estimated that the use of ISG can potentially cut fuel consumption by up to 10% and reduce CO2 emissions by up to 15%.      The advanced accessory belt drive system in micro hybrid vehicles is usually called belt-driven integrated starter-generator (B-ISG) system. The idea of B-ISG came out in year 2000 and has arose a strong interest in the automotive industry because B-ISG requires minimum system redesign and least hardware change to conventional vehicles, thereby providing a cost-effective and quick solution to meeting new environmental standard. However, B-ISG faces a major technical challenge yet to be solved: A very high belt tension is generated when ISG functions as a starter, resulting in quick belt wear and much shortened belt life.         The objective of the proposed equipment in my Discovery Grant is for conducting experiments on a basic B-ISG system to measure and evaluate the tension level in the crankshaft/ISG span. The experimental setup will consist of five pulleys: a crankshaft pulley, an ISG pulley, an accessory pulley, and two-tensioner pulleys. The experiment will require at least five force sensors, five rotational torque sensors, five rotational speed sensors, two acceleration sensors, one speed sensor, two displacement sensors, and two input motor. Accordingly, a 32-channel dynamic signal analyzer is requested in this proposal to accommodate the multiple data acquisition and data analysis requirement.