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A typical ETC system consists of three major components: (i) an accelerator pedal module (ideally with two or more independent sensors), (ii) a throttle valve that can be opened and closed by an electric motor (sometimes referred to as an electric or electronic throttle body (ETB)), and (iii) a powertrain or engine control module (PCM or ECM). [4]
The combination of governed engine speed with foot throttle override is in many ways similar to a modern cruise control. In spite of this development, steering column mounted hand throttles remained common, especially in mass-produced cars such as the Ford Model T. [7] Later cars used both a foot pedal and a hand lever to set the minimum throttle.
However, when the switch is flicked, the resistance must pass through a state where a quarter of the load's rated power [citation needed] (or worse if the load is not purely resistive) is briefly dropped in the switch. For this reason, power switches intended to interrupt a load current have spring mechanisms to make sure the transition between ...
The first widespread use came with the introduction of the mass-produced Birney One-Man Safety (tram) Car, though dead-man equipment was fairly rare on US streetcars until the successful PCC streetcar, which had a left-foot-operated dead man's pedal in conjunction with the right-foot-operated brake and power pedals. This layout has continued to ...
Circuit board layout is conservative, easy to access, repair or modify. Dynamics and reliability are excellent. Its only weak point is that the preamp and power amp modules are installed in the chipboard cabinet with lack of electromagnetic shielding, resulting in a need to physically separate the amp head from bass pickups and speakers.
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A manual transmission (MT), also known as manual gearbox, standard transmission (in Canada, the United Kingdom and the United States), or stick shift (in the United States), is a multi-speed motor vehicle transmission system where gear changes require the driver to manually select the gears by operating a gear stick and clutch (which is usually ...
Another form of coupler found on some large organs is the divided pedal. This is a device that allows the sounds played on the pedals to be split, so the lower octave (principally that of the left foot) plays stops from the pedal division while the upper half (played by the right foot), plays stops from one of the manual divisions.
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