MULTI-FUNCTION VEHICLE-ROLLOVER JUDGMENT SYSTEM AND AUTOMATIC ANTI-ROLLOVER DEVICE
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Abstract
This invention public a multi-functional rollover judgment system and automatic anti-rollover device which are all belong to vehicle area. The mentioned system at least includes two displacement sensors and ECU which is connected with mentioned sensors correspondingly, and the output device (connected with ECU). The mentioned displacement sensor is distributed by a group of two, and at least one group mentioned displacement sensor is set between the frame and axle symmetrically. The mentioned device includes multi-functional judgment system and its connected actuator, and the mentioned actuator at least includes left actuator and right actuator which are symmetrically set on the frame. Both of the mentioned left actuator and right actuator include a telescopic shaft and the return wheel which is set on the outside of telescopic shaft. The invention can prevent the rollover accident from happening in any condition and have wide application range & high accuracy.
5 Citations
22 Claims
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1-12. -12. (canceled)
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13. A multi-functional rollover judgment system, comprising:
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at least two displacement sensors; ECU connected with sensors correspondingly; and an output device connected with ECU;
wherein the displacement sensors are distributed by a group of two, and at least one group displacement sensor set between the frame and axle symmetrically;both ends of all the displacement sensors are set on the outside of frame and axle, and all of the displacement sensors'"'"' output end are connected with the ECU input end;
all of displacement sensors used for detecting the vertical displacement between the frame outside and axle, and this displacement is equal to the amount of elastic deformation of elastic component (on the side of suspension system which is relative to the frame installed on the displacement sensor);
through this wire, it can make the deflection transferred to ECU and calculate the wheel'"'"'s bearing capacity (relative to displacement sensor) through the CPU processing conversion in ECU;there are four displacement sensors (in two groups) which include symmetrically set front-left displacement sensor &
front-right displacement sensor, and symmetrically set back-left displacement sensor and back-right displacement sensor;
the CPU of ECU can be calculated in the following three steps;Step 1;
Calculate the front-left displacement sensor and front-right displacement sensor which set on front axle and back axle, and the bearing capacity which is relative to the front-left wheel, left-back wheel, right-front wheel and right-back wheel of left displacement sensor and back-right displacement sensor;Step 3;
The left-front wheel'"'"'s carrying capacity plus left-back carrying capacity is G left, right-front wheel'"'"'s carrying capacity plus right-back wheel'"'"'s carrying capacity is G right;Step 3;
Compare the left wheel'"'"'s carrying capacity with right wheel'"'"'s carrying capacity;
when the G left is greater than G right, G right/G left=Y left;
when G right is greater than G left, G left/G right=Y right, Y left is the drift rate of the car loading shift to the left wheel, Y right is the drift rate of car loading to the right wheel, the drift rate of car loading can be directly gained by the displacement of front-left displacement sensor (1), back-left displacement sensor (3), front-right displacement sensor (2) and back-right displacement sensor (4);
ECU will calculate the displacement speed through the displacement sensor detecting the vertical displacement (set between the frame outside and axle), and the displacement velocity is the overturning speed of frame, the overturning speed can be gained through calculating the shift speed of car loading;When the drift rate Y left or Y right'"'"'s value reach to the peak value (rollover setting value), ECU (6) will send rollover alarming signal to the alarming module; When the drift rate Y left or Y right'"'"'s value reach to the second peak value (rollover setting value is rollover critical value), and the ECU send rollover alarming to the alarming module, the output end of ECU will send anti-rollover signal to the wheel at the side of maximum wheel loading and remarkable increasing, then start work; When the drift rate—
Y left or Y right recover to the system set safety range, ECU (6) will send stopping anti-rollover signal to make the device in waiting state. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification