公开(公告)号：US3667289A

公开(公告)日：1972-06-06

申请号：US3667289D

申请日：1970-01-05

Applicant: SAAB SCANIA AB

Inventor： BACK ANDERS YNGVE

IPC: G01L23/08 ,  G01M15/00

CPC classification number: G01L23/085

Abstract: A measuring and recording apparatus for testing of motor cars in accordance with a predetermined test program including a program unit having a plurality of measuring data inputs connected to different measuring points of a motor car, particularly points of the motor and electrical system thereof. Said inputs are successively switched through to the measuring system of a recording instrument, the successive switching actions being timed in synchronism with the rotation of the motor when disabled and rotated by the starter. During one revolution of the motor, the relative compressions of the cylinders are recorded by recording the starter current, during another revolution, the primary current of the ignition system is recorded, and further single or double measurements may be carried out during any subsequent revolution. Then, the successive switching actions are timed in dependence on time so that during a fixed period, for example, the motor is blocked and the starter is energized, the starter current being recorded during this measuring period. In this way, a test operation results in a series of successive records of magnitudes, essential for the performance of the motor car, are obtained.

Abstract translation: 一种用于根据预定测试程序测试汽车的测量和记录装置，包括具有连接到电动汽车的不同测量点的多个测量数据输入的程序单元，特别是电动机及其电气系统的点。 所述输入被连续地切换到记录仪器的测量系统，所述连续的切换动作在被起动器禁用和旋转时与电动机的旋转同步地定时。 在电动机转一圈期间，通过记录起动器电流来记录气缸的相对压缩，在另一转期间，记录点火系统的初级电流，并且可以在随后的任何转速期间进一步进行单次或双次测量。 然后，连续的切换动作根据时间进行定时，使得在固定时间段期间，例如，电动机被阻塞并且启动器被通电，在该测量周期期间记录起动器电流。 以这种方式，测试操作产生一系列连续的对于汽车性能至关重要的数值记录。