Microcomputer control system for a canister vacuum cleaner

Details Microcomputer control system for a canister vacuum cleaner Microcomputer control system for a canister vacuum cleaner

A - Human Necessities

47

L

342/21

A47L 9/28 (2006.01)

Patent

CA 1330231

ABSTRACT A control system for a vacuum cleaner comprising three separate sub-control systems located in a canister portion, a power nozzle floor cleaner portion and a suction hose handle portion respectively. The handle portion sub-control includes user input switches and indicator lights and it controls the other two sub controls. The canister sub-control controls the energization and speed of a suction fan motor as well as sensing pressure levels in the canister and suction hose. The floor cleaner sub-control controls the energization of a beater brush motor as well as sensing the rotational speed of the beater brush and depth of carpeting pile. Microcomputers are used in each circuit and communication between the circuits is done in packet form on a third connector and one side of an AC power line. Diagnostic testing is also built into the control system.

616035

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