1、BRITISH STANDARD AUTOMOBILE SERIES BS AU 236:1990 Specification for Circular electronic tachographs for road vehiclesBSAU236:1990 This British Standard, having been prepared under the directionof the Automobile Standards Policy Committee, waspublished under the authorityof the Board of BSI andcomes
2、into effect on 30November1990 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference AUE/9 Draft for comment 87/71439 DC ISBN 0 580 18984 8 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Automo
3、bile Standards Policy Committee (AUE/-) to Technical Committee AUE/9, upon which the following bodies were represented: Automobile Association British Telecommunications plc Consumer Policy Committee of BSI Department of Trade and Industry (Consumer Safety Unit, CA Division) Department of Transport
4、Garage Equipment Association Institute of Trading Standards Administration Motor Agents Association Limited Royal Automobile Club Society of Motor Manufacturers and Traders Limited Amendments issued since publication Amd. No. Date is issue CommentsBSAU236:1990 BSI 10-1999 i Contents Page Committees
5、responsible Inside front cover Foreword ii 1 Scope 1 2 Definition 1 3 Mechanical features 1 4 Electrical features 1 5 Functional assignments of connector pins 1 Figure 1 Tachograph 2 Table 1 Functional assignments of connector pins 3 Table 2 K ratio table 5BSAU236:1990 ii BSI 10-1999 Foreword This B
6、ritish Standard has been prepared, under the direction of the AutomobileStandards Policy Committee, at the request of the Society of MotorManufacturers and Traders, and is based on SMMT information sheet No. EE-14H Electronic Tachographs. Some features have been excluded to allow for special install
7、ations and to permit future developments. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.
8、 Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages1 to 12 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BSAU236
9、:1990 BSI 10-1999 1 1 Scope This British Standard specifies overall mounting and installation dimensions, and certain electrical connections and signals for circular electronic tachographs. 2 Definition For the purposes of this British Standard the following definition applies. tachograph an instrum
10、ent which displays andrecordsspeedand distance and meets therequirementsofEEC Regulation 1463/70 Annex 1and/or EEC Regulation 3821/85Annex 1 3 Mechanical features 3.1 General The tachograph shall have connectors at the rear and a calibration facility accessible without removal of the instrument from
11、 its mounting, e.g. by means of a hinged door. The tachograph shall be circular in shape. 3.2 Dimensions Dimensions shall be as given in Figure 1 for the following items: a) body diameter, A; b) bezel diameter: 1) at mounting face, B 1 ; 2) at connector insertion face, B 2 ; c) body height above mou
12、nting face, C; d) bezel depth behind mounting face, including connectors and sealing device(s), D; e) hinge to top edge of body, E; f) trim panel clearance hold, F. 4 Electrical features 4.1 General Four connectors shall be fitted at the rear of the tachograph to provide the electrical interface. 4.
13、2 Connector pin assignments The functions assigned to pins shall be as given in Table 1. NOTE 1For connections without an assignment, i.e.unallocated pins, the preferred function is indicated. NOTE 2Each dash in Table 1 represents a switch selection point which is not occupied within the standard ba
14、nk of11switch point units. 4.3 Input signal The input signal frequency range shall be2400to24659pulses/km. 4.4 Calibration There shall be10switches provided, for purposes of calibration. NOTESee Table 2 for details of switch settings. 4.5 Auto power standby (where fitted) After having received no in
15、put signal for a period of48h the instrument shall switch to low power mode. It shall reset automatically on receipt of the input signal. 4.6 Serial data link Facilities for a serial data link shall be incorporated. NOTENo universally accepted standard relating to a serial data link is yet available
16、. 5 Functional assignments of connector pins The functional assignments of connector pins shall be as listed in Table 1.BSAU236:1990 2 BSI 10-1999 Figure 1 TachographBSAU236:1990 BSI 10-1999 3 Table 1 Functional assignments of connector pins Pin standard function Preferred function for unallocated p
17、ins Note for reference Connector A, Power supply A1 A2 A3 A4 A5 A6 A7 A8 Permanent positive supply Lighting positive supply Positive supply (keyswitch) Positive supply Permanent negative supply Lighting negative supply Speed warning contact 1, 2 Connector B, Speed B1 B2 B3 B4 B5 B6 B7 B8 Sender unit
18、 positive supply Sender unit negative supply Input1from sender unit Input2from sender unit Control Control Speed output (pulses/m) Distance output (4pulses/m) 3 3 4 4 5 5 6, 7 7 Connector C, Engine speed (where fitted) C1 C2 C3 C4 C5 C6 C7 C8 Sender unit positive supply Sender unit negative supply I
19、nput from terminal W of the vehicle alternator Input from sender unit (also inductive) Engine speed output (4pulses/r) Engine speed output (pulses/r) Engine speed warning 3 3 4 8 7 7, 9 1, 2 Connector D, Special functions (where fitted) D1 D2 D3 D4 D5 D6 D7 D8 Two speed axle input Low road speed out
20、put Additional stylus Additional stylus Speed pulse output Engine speed output 6, 7 7, 9 10 7BSAU236:1990 4 BSI 10-1999 Notes for Table 1 NOTE 1When active the connector pin switches to the positive supply. NOTE 2The connector pin is not for safety critical use. NOTE 3The sender supply, V s , is nom
21、inally8V to12V and6V minimum at10mA output current. NOTE 4High input = (V s 3V) minimum = (vehicle voltage + 1V) maximum Low input = 0V to1.9V Nominal input current = 1mA. NOTE 5Link pin B5to pin B6for sender units having a single output. NOTE 6The output frequency is identical to, and synchronous w
22、ith, the sender unit signal. The input signal pulse width is inversely proportional to the K factor. K = number of pulses/km Pulse width = (in seconds). NOTE 7High output = 8V Low output = 0V Internal impedance = 3.7k7 maximum NOTE 8Peak to peak amplitude of high frequency input = 0.9minimum 40.0V m
23、aximum. NOTE 9The output frequency is identical to, and synchronous with, the engine speed. The input signal pulse width = 8/N where N = number of pulses per engine revolution. NOTE 10Activate the connector pin by connecting the ground contact. Active (low) = 0V to2.0V Inactive (high) = 5V minimum.
24、16 K -BSAU236:1990 BSI 10-1999 5 Table 2 K ratio table K Switch selection K K Switch selection K min. max. exact min. max. exact (pulses/km) (pulses/km) (pulses/km) (pulses/km) 2400 2402 2405 2408 2411 2401 2404 2407 2410 2412 1 - - 4 - 67 - 910 - - - 4 - 67 - 910 123 - - 67 - 910 - 23 - - 67 - 910
25、1 - 3 - - 67 - 910 2401 2404 2406 2409 2412 2545 2548 2551 2555 2558 2547 2550 2554 2557 2560 123 - 56 - - 910 - 23 - 56 - - 910 1 - 3 - 56 - - 910 - - 3 - 56 - - 910 12 - - 56 - - 910 2547 2550 2553 2556 2559 2413 2416 2419 2422 2425 2415 2418 2421 2424 2426 - - 3 - - 67 - 910 12 - - - 67 - 910 - 2
26、 - - - 67 - 910 1 - - - - 67 - 910 - - - - - 67 - 910 2415 2418 2420 2423 2426 2561 2564 2567 2570 2573 2563 2566 2569 2572 2576 - 2 - - 56 - - 910 1 - - - 56 - - 910 - - - - 56 - - 910 1234 - 6 - - 910 - 234 - 6 - - 910 2562 2565 2569 2572 2575 2427 2430 2433 2436 2439 2429 2432 2435 2438 2440 1234
27、5 - 7 - 910 - 2345 - 7 - 910 1 - 345 - 7 - 910 - - 345 - 7 - 910 12 - 45 - 7 - 910 2429 2432 2434 2437 2440 2577 2580 2583 2586 2589 2579 2582 2585 2588 2591 1 - 34 - 6 - - 910 - - 34 - 6 - - 910 12 - 4 - 6 - - 910 - 2 - 4 - 6 - - 910 1 - - 4 - 6 - - 910 2578 2581 2584 2588 2591 2441 2444 2447 2450
28、2453 2443 2446 2449 2452 2455 - 2 - 45 - 7 - 910 1 - - 45 - 7 - 910 - - - 45 - 7 - 910 123 - 5 - 7 - 910 - 23 - 5 - 7 - 910 2443 2446 2449 2451 2454 2592 2596 2599 2602 2605 2595 2598 2601 2604 2608 - - - 4 - 6 - - 910 123 - - 6 - - 910 - 23 - - 6 - - 910 1 - 3 - - 6 - - 910 - - 3 - - 6 - - 910 2594
29、 2597 2600 2604 2607 2456 2459 2462 2464 2467 2458 2461 2463 2466 2469 1 - 3 - 5 - 7 - 910 - - 3 - 5 - 7 - 910 12 - - 5 - 7 - 910 - 2 - - 5 - 7 - 910 1 - - - 5 - 7 - 910 2457 2460 2463 2466 2469 2609 2612 2615 2618 2622 2611 2614 2617 2621 2624 12 - - - 6 - - 910 - 2 - - - 6 - - 910 1 - - - - 6 - -
30、910 - - - - - 6 - - 910 12345 - - - 910 2610 2613 2617 2620 2623 2470 2473 2476 2479 2482 2472 2475 2478 2481 2484 - - - - 5 - 7 - 910 1234 - - 7 - 910 - 234 - - 7 - 910 1 - 34 - - 7 - 910 - - 34 - - 7 - 910 2472 2475 2478 2480 2483 2625 2628 2632 2635 2638 2627 2631 2634 2637 2640 - 2345 - - - 910
31、1 - 345 - - - 910 - - 345 - - - 910 12 - 45 - - - 910 - 2 - 45 - - - 910 2627 2630 2633 2636 2640 2485 2488 2491 2494 2497 2487 2490 2493 2496 2499 12 - 4 - - 7 - 910 - 2 - 4 - - 7 - 910 1 - - 4 - - 7 - 910 - - - 4 - - 7 - 910 123 - - - 7 - 910 2486 2489 2492 2495 2498 2641 2645 2648 2651 2655 2644
32、2647 2650 2654 2657 1 - - 45 - - - 910 - - - 45 - - - 910 123 - 5 - - - 910 - 23 - 5 - - - 910 1 - 3 - 5 - - - 910 2643 2646 2650 2653 2657 2500 2503 2506 2509 2512 2502 2505 2508 2511 2514 - 23 - - - 7 - 910 1 - 3 - - - 7 - 910 - - 3 - - - 7 - 910 12 - - - - 7 - 910 - 2 - - - - 7 - 910 2501 2504 25
33、07 2510 2513 2658 2662 2665 2668 2672 2661 2664 2667 2671 2674 - - 3 - 5 - - - 910 12 - - 5 - - - 910 - 2 - - 5 - - - 910 1 - - - 5 - - - 910 - - - - 5 - - - 910 2660 2663 2667 2670 2673 2515 2518 2521 2524 2527 2517 2520 2523 2526 2529 1 - - - - - 7 - 910 - - - - - - 7 - 910 123456 - - 910 - 23456
34、- - 910 1 - 3456 - - 910 2516 2519 2522 2525 2528 2675 2679 2682 2685 2689 2678 2681 2684 2688 2691 1234 - - - - 910 - 234 - - - - 910 1 - 34 - - - - 910 - - 34 - - - - 910 12 - 4 - - - - 910 2677 2680 2684 2687 2691 2530 2533 2536 2539 2542 2532 2535 2538 2541 2544 - - 3456 - - 910 12 - 456 - - 910
35、 - 2 - 456 - - 910 1 - - 456 - - 910 - - - 456 - - 910 2531 2534 2538 2541 2544 2692 2696 2699 2703 2706 2695 2698 2702 2705 2709 - 2 - 4 - - - - 910 1 - - 4 - - - - 910 - - - 4 - - - - 910 123 - - - - - 910 - 23 - - - - - 910 2694 2698 2701 2705 2708BSAU236:1990 6 BSI 10-1999 Table 2 K ratio table
36、K Switch selection K exact K Switch selection K exact min. max. min. max. (pulses/km) (pulses/km) (pulses/km) (pulses/km) 2710 2713 2717 2720 2724 2712 2716 2719 2723 2726 1 - 3 - - - - - 910 - - 3 - - - - - 910 12 - - - - - - 910 - 2 - - - - - - 910 1 - - - - - - - 910 2712 2715 2719 2722 2726 2897
37、 2901 2905 2909 2913 2900 2904 2908 2912 2916 12 - - 5 - 78 - 10 - 2 - - 5 - 78 - 10 1 - - - 5 - 78 - 10 - - - - 5 - 78 - 10 1234 - - 78 - 10 2899 2903 2907 2911 2915 2727 2731 2735 2738 2742 2730 2734 2737 2741 2744 - - - - - - - - 910 12345678 - 10 - 2345678 - 10 1 - 345678 - 10 - - 345678 - 10 27
38、29 2733 2736 2740 2743 2917 2921 2925 2929 2934 2920 2924 2928 2933 2937 - 234 - - 78 - 10 1 - 34 - - 78 - 10 - - 34 - - 78 - 10 12 - 4 - - 78 - 10 - 2 - 4 - - 78 - 10 2919 2923 2927 2931 2936 2745 2749 2752 2756 2760 2748 2751 2755 2759 2762 12 - 45678 - 10 - 2 - 45678 - 10 1 - - 45678 - 10 - - - 4
39、5678 - 10 123 - 5678 - 10 2747 2751 2754 2758 2762 2938 2942 2946 2950 2954 2941 2945 - 2949 2953 2957 1 - - 4 - - 78 - 10 - - - 4 - - 78 - 10 123 - - - 78 - 10 - 23 - - - 78 - 10 1 - 3 - - - 78 - 10 2940 2944 2948 2952 2956 2763 2767 2771 2774 2778 2766 2770 2773 2777 2781 - 23 - 5678 - 10 1 - 3 -
40、5678 - 10 - - 3 - 5678 - 10 12 - - 5678 - 10 - 2 - - 5678 - 10 2765 2769 2772 2776 2780 2958 2963 2967 2971 2975 2962 2966 2970 2974 2978 - - 3 - - - 78 - 10 12 - - - - 78 - 10 - 2 - - - - 78 - 10 1 - - - - - 78 - 10 - - - - - - 78 - 10 2960 2965 2969 2973 2977 2782 2785 2789 2793 2797 2784 2788 279
41、2 2796 2799 1 - - - 5678 - 10 - - - - 5678 - 10 1234 - 678 - 10 - 234 - 678 - 10 1 - 34 - 678 - 10 2784 2787 2791 2795 2798 2979 2984 2988 2992 2996 2983 2987 2991 2995 3000 123456 - 8 - 10 - 23456 - 8 - 10 1 - 3456 - 8 - 10 - - 3456 - 8 - 10 12 - 456 - 8 - 10 2982 2986 2990 2994 2999 2800 2804 2808
42、 2812 2815 2803 2807 2811 2814 2818 - - 34 - 678 - 10 12 - 4 - 678 - 10 - 2 - 4 - 678 - 10 1 - - 4 - 678 - 10 - - - 4 - 678 - 10 2802 2806 2810 2813 2817 3001 3005 3009 3014 3018 3004 3008 3013 3017 3021 - 2 - 456 - 8 - 10 1 - - 456 - 8 - 10 - - - 456 - 8 - 10 123 - 56 - 8 - 10 - 23 - 56 - 8 - 10 30
43、03 3007 3011 3016 3020 2819 2823 2827 2831 2834 2822 2826 2830 2833 2837 123 - - 678 - 10 - 23 - - 678 - 10 1 - 3 - - 678 - 10 - - 3 - - 678 - 10 12 - - - 678 - 10 2821 2825 2829 2832 2836 3022 3027 3031 3035 3040 3026 3030 3034 3039 3043 1 - 3 - 56 - 8 - 10 - - 3 - 56 - 8 - 10 12 - - 56 - 8 - 10 -
44、2 - - 56 - 8 - 10 1 - - - 56 - 8 - 10 3025 3029 3033 3038 3042 2838 2842 2846 2850 2854 2841 2845 2849 2853 2857 - 2 - - - 678 - 10 1 - - - - 678 - 10 - - - - - 678 - 10 12345 - 78 - 10 - 2345 - 78 - 10 2840 2844 2848 2852 2856 3044 3049 3053 3058 3062 3048 3052 3057 3061 3066 - - - - 56 - 8 - 10 12
45、34 - 6 - 8 - 10 - 234 - 6 - 8 - 10 1 - 34 - 6 - 8 - 10 - - 34 - 6 - 8 - 10 3047 3051 3055 3060 3064 2858 2861 2865 2869 2873 2860 2864 2868 2872 2876 1 - 345 - 78 - 10 - - 345 - 78 - 10 12 - 45 - 78 - 10 - 2 - 45 - 78 - 10 1 - - 45 - 78 - 10 2859 2863 2867 2871 2875 3067 3071 3076 3080 3085 3070 307
46、5 3079 3084 3088 12 - 4 - 6 - 8 - 10 - 2 - 4 - 6 - 8 - 10 1 - - 4 - 6 - 8 - 10 - - - 4 - 6 - 8 - 10 123 - - 6 - 8 - 10 3069 3073 3078 3082 3087 2877 2881 2885 2889 2893 2880 2884 2888 2892 2896 - - - 45 - 78 - 10 123 - 5 - 78 - 10 - 23 - 5 - 78 - 10 1 - 3 - 5 - 78 - 10 - - 3 - 5 - 78 - 10 2879 2883
47、2887 2891 2895 3089 3094 3098 3103 3107 3093 3097 3102 3106 3111 - 23 - - 6 - 8 - 10 1 - 3 - - 6 - 8 - 10 - - 3 - - 6 - 8 - 10 12 - - - 6 - 8 - 10 - 2 - - - 6 - 8 - 10 3091 3096 3101 3105 3110BSAU236:1990 BSI 10-1999 7 Table 2 K ratio table K Switch selection K exact K Switch selection K exact min.
48、max. min. max. (pulses/km) (pulses/km) (pulses/km) (pulses/km) 3112 3117 3121 3126 3131 3116 3120 3125 3130 3134 1 - - - - 6 - 8 - 10 - - - - - 6 - 8 - 10 12345 - - 8 - 10 - 2345 - - 8 - 10 1 - 345 - - 8 - 10 3114 3119 3124 3128 3133 3362 3367 3372 3378 3383 3366 3371 3377 3382 3388 1234 - 67 - - 10
49、 - 234 - 67 - - 10 1 - 34 - 67 - - 10 - - 34 - 67 - - 10 12 - 4 - 67 - - 10 3364 3370 3375 3381 3386 3135 3140 3145 3150 3154 3139 3144 3149 3153 3158 - - 345 - - 8 - 10 12 - 45 - - 8 - 10 - 2 - 45 - - 8 - 10 1 - - 45 - - 8 - 10 - - - 45 - - 8 - 10 3138 3142 3147 3152 3157 3389 3394 3400 3405 3411 3393 3399 3404 3410 3415 - 2 - 4 - 67 - - 10 1 - - 4 - 67 - - 10 - - - 4 - 67 - - 10 123 - - 67 - - 10 - 23 - - 67 - - 10 3392 3397 3403 3408 3414 3159 3164 3169 3
