Communications: electrical – Selective – Having indication or alarm
Patent
1982-02-22
1984-03-20
Crosland, Donnie L.
Communications: electrical
Selective
Having indication or alarm
340 52D, 340 62, 340669, 307 10AT, 434 71, 74856, 74861, 74DIG7, 200 6188, 200 6191, B60Q 126, B60K 2300
Patent
active
044384238
ABSTRACT:
A device for producing a shift instruction has three threshold switches (6, 7, 12) which are dependent on the rpm (speed of rotation). The first threshold shift (6) is connected via an AND gate (5) to an upshift signal indicator (9). This AND gate is conductive only when the gas pedal (1) is depressed less than 20% and the speed threshold of the first threshold transmitter (6) is reached. If the gas pedal (1) is depressed further, the upshift signal indicator (9) only lights up when the speed threshold of the third threshold switch, namely the maximum permissible speed of rotation is reached. The downshift signal indicator (11) lights up when the speed of rotation of the engine drops below the threshold of the second threshold switch (7). By this development shift instructions are given which sufficiently take into account the engine power of the vehicle without the necessity of measuring this engine power.
REFERENCES:
patent: 4037196 (1977-07-01), Atkinson et al.
patent: 4174766 (1979-11-01), Kalogerson
patent: 4199747 (1980-04-01), Miller et al.
patent: 4355296 (1982-10-01), Drone
Crosland Donnie L.
Farber Martin A.
VDO Adolf Schindling AG
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