Download SSP 208 Air Conditioner in the Motor Vehicle (2) PDF

TitleSSP 208 Air Conditioner in the Motor Vehicle (2)
File Size2.0 MB
Total Pages39
Document Text Contents
Page 1

t! p

38

System control

At high (increasing) pressure At high (increasing) pressure, the crystal is
“deformed“ more, so the change of resistance is
larger. The test voltage decreases
proportionately.

208_065

208_066

Period duration 20 ms

Pulse width 18 ms

Pulse width signal The pulse width increases in proportion to the
increasing pressure.

At a high pressure of 3.7 MPa (37 bar), the pulse
width is 18 ms. This is equivalent to 90% of the
period duration.

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