| 摘要 |
PCT No. PCT/EP86/00197 Sec. 371 Date Nov. 14, 1986 Sec. 102(e) Date Nov. 14, 1986 PCT Filed Apr. 2, 1986 PCT Pub. No. WO86/06190 PCT Pub. Date Oct. 23, 1986.A vehicle performance monitoring apparatus (20) for displaying the values of a plurality of performance parameters of a vehicle (10). The apparatus includes sensors (21,22,23,24,25) for sensing data indicative of the performance of the vehicle, processing means (40,42) for processing this data to provide the parameter values, display means (35) for displaying said parameter values, and operator command means (37,38) for controlling the operation of the apparatus including the selection of which performance parameter is to be displayed on the display means and the initiation of processing routines by the processing means. Additionally the apparatus includes memory means (43,44,45) for storing performance information relating to the performance parameters and the processing means (40,42) is arranged in response to a predetermined operation of the operator command means (37,38) to store in the memory means (43,44,45) a performance parameter value for each of a number of so-called relative mode parameters. These stored values are used as reference values so that subsequently, when the apparatus is operated in so-called relative mode, the current performance parameter values for the relative mode parameters are processed by the processing means (40,42) and are each displayable on the display means (35) as proportions (e.g. percentages) of their respective reference value.
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