Shifting timing indicating system for a vehicle
First Claim
1. A shifting timing indicating system for a vehicle comprising a control means having an engine rpm detecting means for detecting the engine rpm and a rpm determination means which receives the output of the engine rpm detecting means and determines whether the engine rpm exceeds a preset value, the control means outputting a shift-up signal when the engine rpm exceeds the preset value, and a shift-up indicating means which receives the shift-up signal from the control means and makes a shift-up indication to direct the operator of the vehicle to shift up, wherein the improvement comprises an engine load detecting means for detecting the engine load;
- an acceleration detecting means responsive to said engine load detecting means to detect the rate of increase in engine load and restricting means responsive to said acceleration detecting means to inhibit the shift-up indicating means from making the shift-up indication when the rate of increase in engine load is greater than a predetermined positive value.
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Accused Products
Abstract
A shifting timing indicating system for a vehicle includes a control circuit having an engine rpm sensor for detecting the engine rpm and a rpm comparator which receives the output of the engine rpm sensor and determines whether the engine rpm exceeds a preset value. The control circuit outputs a shift-up signal when the engine rpm exceeds the preset value. A shift-up indicator receives the shift-up signal from the control circuit and makes a shift-up display to direct the operator of the vehicle to shift up. An acceleration detecting circuit detects the rate of increase in engine load and the shift-up indicator is inhibited from making the shift-up display for a predetermined time interval which is extended with increase in the rate of increase in engine load.
21 Citations
11 Claims
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1. A shifting timing indicating system for a vehicle comprising a control means having an engine rpm detecting means for detecting the engine rpm and a rpm determination means which receives the output of the engine rpm detecting means and determines whether the engine rpm exceeds a preset value, the control means outputting a shift-up signal when the engine rpm exceeds the preset value, and a shift-up indicating means which receives the shift-up signal from the control means and makes a shift-up indication to direct the operator of the vehicle to shift up, wherein the improvement comprises an engine load detecting means for detecting the engine load;
- an acceleration detecting means responsive to said engine load detecting means to detect the rate of increase in engine load and restricting means responsive to said acceleration detecting means to inhibit the shift-up indicating means from making the shift-up indication when the rate of increase in engine load is greater than a predetermined positive value.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
Specification