Vehicle tyre monitoring system

Details Vehicle tyre monitoring system Vehicle tyre monitoring system

1987-10-27

1988-07-26

Crosland, Donnie L.

Communications: electrical

Selective

Having indication or alarm

340 58, 731465, 116 34R, 116 34A, 374121, B60Q 100, B60C 2302

Patent

active

047603712

ABSTRACT:
A tyre running hot due to under-inflation or other causes radiates heat. This is detected by sensors (4,27) positioned within the wheel arches. A comparison is made between each sensor output and a norm, such as ambient temperature from air temperature detectors (5) or the mean of all the sensor outputs, and significant departure from that norm triggers an alarm (22). The sensors may each be a detector (27) at the focus of a parabolic reflecting shell (28) shielded by a heat-transparent cover (30), and they will generally be positioned to face the inner side walls of the tyres. Direct wiring to the alarm unit is possible, but with a trailer (2) the signals may be locally encoded, fed by existing wiring (13) to the tractor (1) and there be decoded.

REFERENCES:
patent: 3491335 (1970-01-01), MacConochie
patent: 3510835 (1970-05-01), Gilbert
patent: 3852717 (1974-12-01), Hosaka et al.
patent: 3875558 (1975-04-01), Samples
patent: 3938077 (1976-02-01), Nakanishi et al.
patent: 4024495 (1977-05-01), O'Brien
patent: 4065751 (1977-12-01), Stewart et al.
patent: 4355298 (1982-10-01), Jessup

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