Electrical pulse counters – pulse dividers – or shift registers: c – Systems – Identifying or correcting improper counter operation
Patent
1991-07-09
1992-11-03
Howell, Janice A.
Electrical pulse counters, pulse dividers, or shift registers: c
Systems
Identifying or correcting improper counter operation
3644241, 36443103, 340456, G06G 766
Patent
active
051611740
ABSTRACT:
A power unit assembly comprising an internal-combustion engine, a mechanical, unsynchronized gearbox, a clutch interposed between the engine and the gearbox, an inertia brake in which the gearbox, the relevant synchronization by means of the engine or the inertia brake and the control of the injection pump for the engine are controlled by an electronic processor adapted to inhibit the engagement of gear ratios to which an engine speed corresponds which does not fall within a programmed range of normal values; the processor is adapted to detect emergency operating conditions and, in such a case, to allow the engagement of a gear ratio which results in an engine speed value above said programmed range of values; to ensure synchronization even under such conditions the injection pump is provided with adjustment means adapted to allow speeds to be attained which are close to the upper limit of mechanical integrity of the engine.
REFERENCES:
patent: 4507736 (1985-03-01), Klatt
patent: 4732055 (1988-03-01), Tateno et al.
patent: 4763264 (1988-08-01), Okuno et al.
patent: 5081583 (1992-01-01), Kono et al.
Howell Janice A.
Iveco Fiat S.p.A.
Ouellette Scott A.
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