Patent ID: 6089118
Filing Date: 2000-07-18
Classification: F16H,Y10T

Abstract:
A shifting device for an automatic transmission comprising:a shift lever that selects an automatic shift mode and a manual shift mode and that selects either of upshift and downshift operations when said manual shift mode is selected,a manual mode switch that detects whether said shift lever has selected said manual shift mode, said manual mode switch comprising a first traveling contact, a first contact that comes in contact with said first traveling contact when said shift lever has not selected said manual shift mode, and a second contact that comes in contact with said first traveling contact when said shift lever has selected said manual shift mode,an upshift switch that detects whether said shift lever has selected said upshift operation, said upshift switch comprising a second traveling contact, a third contact that comes in contact with said second traveling contact when said shift lever has not selected said upshift operation, and a fourth contact that comes in contact with said second traveling contact when said shift lever has selected said upshift operation,a downshift switch that detects whether said shift lever has selected said downshift operation, and said downshift switch comprising a third traveling contact, a fifth contact that comes in contact with said third traveling contact when said shift lever has not selected said downshift operation, and a sixth contact that comes in contact with said third traveling contact when said shift lever has selected said downshift operation, anda control unit comprising four input terminals from a first input terminal to a fourth input terminal, which control unit outputs a shifting command to said transmission based on input signals input to said four input terminals from said manual mode switch, upshift switch, and downshift switch, wherein:said first traveling contact of said manual mode switch is grounded,said first contact of said manual mode switch is connected to said first input terminal of said control unit,said second traveling contact of said upshift switch is connected to said second contact of said manual mode switch,said third contact of said upshift switch is connected to said third traveling contact of said downshift switch,said fourth contact of said upshift switch is connected to said second input terminal of said control unit, andsaid fifth contact and said sixth contact of said downshift switch are respectively connected to said fourth input terminal and said third input termninal of said control unit.