Abstract: An Electric Vehicle Monitoring System (EVMS) for measuring the performance f an electric vehicle. The preferred embodiment of the system comprises: (1) a variety of sensors for obtaining data on vehicle performance and operating parameters; (2) a digital dashboard display providing the vehicle operator with information on vehicle operating parameters; (3) a data acquisition system for collecting the data from the sensors and converting the data to digital format; and (4) a processing unit in the form of a removable, portable or notebook computer used for storing, evaluating and providing reports of the digital format data. The EVMS is adapted for use in a vehicle specifically designed for electric propulsion or for use in an internal combustion engine vehicle converted to electrical power use. The sensors include voltmeters, ammeters, thermocouples, optical shaft encoders and an inclinometer and provide data to both the operator display and the data acquisition system.

Abstract: A function array system includes a controller, a test function and specific memories to accelerate the execution of a VLSI device test program by preloading register files associate with each hardware function in the tester with test set-up information. Test information is transferred to the register files only once when the test program is initially downloaded into the tester. A simple controller sequences a test set-up pointer during test execution.

Abstract: A timing system using shared address generator(s) to address memories that form the basis of each pin's timing reference generator can reduce the amount of hardware required to implement a "Timing Generator Per Pin" architecture in a VLSI tester by at least 50%.

Abstract: A socket wrench of improved design which not only provides for interchangeability but also for easy removal of the socket member. The ratchet and socket openings are provided in separate annular coaxial members. The ratchet wheel is adapted to loosely receive a removable socket insert. The periphery of the ratchet wheel is provided with a plurality of ball bearings which are mounted in openings which face inwardly toward the socket insert. The socket insert is provided with receiving structure for the ball bearings. A spring wraps around a portion of the periphery of the ratchet wheel and normally biases the ball bearings into locking engagement with the socket insert. The spring is provided with a portion spaced from the ratchet wheel which is actuatable to release the spring tension on the ball bearings, thus permitting the socket insert to freely drop out of the ratchet wheel.