Browse Standards J643_201812
Historical REVISED 2018-12-05

Hydrodynamic Drive Test Code J643_201812

The range of test conditions on the dynamometer shall be sufficient to determine the primary operating characteristics corresponding to the full range of vehicle operations.
The characteristics to be determined are:
  1. a
    Torque ratio versus speed ratio and output speed
  2. b
    Input speed versus speed ratio and output speed
  3. c
    Efficiency versus speed ratio and output speed
  4. d
    Capacity factor versus speed ratio and output speed
  5. e
    Input torque versus input speed
NOTE: For more information about these characteristics and the design of hydrodynamic drives, refer to “Design Practices: Passenger Car Automatic Transmissions,” SAE Advances in Engineering, AE-18 (Third Ed.) or AE-29 (Fourth Ed.).
J643_202308
2023-08-01
Latest
Stabilized
J643_201812
2018-12-05
Historical
Revised
J643_201104
2011-04-04
Historical
Revised
J643_200005
2000-05-16
Historical
Reaffirmed
J643_198906
1989-06-01
Historical
Revised
J643B_197906
1979-06-01
Historical
Revised

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