Optimum shift timing indicating device for a vehicle

Details Optimum shift timing indicating device for a vehicle Optimum shift timing indicating device for a vehicle

1983-09-22

1986-11-11

Gruber, Felix D.

Boots, shoes, and leggings

340 52D, 364442, 434 71, B60K 4118, G09B 1916, G07C 508

Patent

active

046226370

ABSTRACT:
An optimum shift timing indicating device for a vehicle includes: a speed sensor for detecting a rotational speed of an engine or a running speed of the vehicle; a load sensor for detecting an engine load; a data processing device having a data map or maps fewer in number than gear positions of the vehicle transmission, said data map or maps having a set shift-up region and/or shift-down region selected in accordance with the rotational speed of the engine or the running speed of the vehicle and the engine load, for emitting a shift-up instruction signal and/or a shift-down instruction signal in accordance with the rotational speed of the engine or the running speed of the vehicle and the engine load; and a shift instructing device for giving a driver a shift-up instruction and/or a shift-down instruction in response to an output from said data processing device; so that instruction about the optimum shift timing can be given to the driver with the use of only a small memory capacity.

REFERENCES:
patent: 4150497 (1979-04-01), Weber
patent: 4198882 (1980-04-01), Kiencke et al.
patent: 4355296 (1982-10-01), Drone
patent: 4463427 (1984-07-01), Bonnetain et al.
patent: 4474081 (1984-10-01), Kinugasa et al.
patent: 4539868 (1985-09-01), Habu
patent: 4559599 (1985-12-01), Habu et al.

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