PATENT CLAIM ANALYSIS

Application Number: 15753105
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["701", "022000"]

Abstract:
A vehicle stability control system includes a signal collection sensor and a vehicle controller ( 10 ). The signal collection sensor is configured to collect a vehicle condition information parameter, and the vehicle controller ( 10 ) is configured to calculate a control yaw moment according to the vehicle condition information parameter. The control yaw moment is used to cancel a difference between an estimated yaw moment and an actual yaw moment. The vehicle controller ( 10 ) is further configured to determine according to the vehicle condition information parameter whether the vehicle ( 100 ) is in a stable region or a non-stable region in the case of tire blow-out, and allocate the control yaw moment to four wheels ( 101 ) according to a vehicle stability condition, thus implementing vehicle stability control. A vehicle stability control method and a vehicle ( 100 ) with the vehicle stability control system are also disclosed.

Claim (Index 14):
The vehicle stability control method according to  claim 13 , wherein the control yaw moment is calculated according to a formula of\n M RSC =\u2212l f F yf  cos \u03b4 f +l \u03b3 F yr +I z ({dot over (\u03b3)} d \u2212\u03b6({dot over (\u03b2)}\u2212{dot over (\u03b2)} d )); where M RSC  is the control yaw moment; l f  and l r  are distances from a front shaft and a rear shaft of the vehicle to a mass center of the vehicle respectively; F yf  and F yr  are lateral forces applied to front wheels and rear wheels of the vehicle respectively, and meet equations of F yf = k f \ue89e \u03b1 f = k f \ue8a0 ( \u03b4 f - v y - l f \u03b3 v x ) ; and F yr = k r \ue89e \u03b1 r = k r \ue8a0 ( \u03b4 r - v y - l r \u03b3 v x ) , where k f  and k r  are cornering stiffness of the front shaft and the rear shaft of the vehicle respectively, and deduced from the tire pressure; \u03b1 f  and \u03b1 r  are accelerations of the front wheels and the rear wheels of the vehicle respectively, and are obtained according to the transverse acceleration and the longitudinal acceleration; \u03b4 f  and \u03b4 r  are turning angles of the front wheels and the rear wheels of the vehicle respectively, and are obtained according to the steering wheel angle; v x  and v y  are transverse speed and longitudinal speed of the vehicle respectively, and are obtained according to the wheel speed; \u03b3 is the yaw velocity; I z  is moment of inertia of the vehicle around the axis Z; \u03b3 d  is a derivative of an estimated yaw velocity, and \u03b3 d = \u03b4 r \u22c6 v x / L 1 + K \u22c6 v x 2 ; where L is a distance between the front shaft and the rear shaft of the vehicle; K is a stability factor, K = m L 2 \ue89e ( l f k r - l r k f ) ; where m is the mass of the vehicle; \u03b6 is a constant; {dot over (\u03b2)} is a derivative of a sideslip angle, and the sideslip angle \u03b2 is obtained from the wheel speed; {dot over (\u03b2)} d  is a derivative of an estimated sideslip angle, and \u03b2 d = l r - m \u22c6 l f \u22c6 v x 2 / ( k r \u22c6 L ) L \ue8a0 ( 1 + Kv x 2 ) \ue89e \u03b4 f .

Metadata:
- Claim Count in Document: 7.0
- Percentile: 88.0
- Lexical Diversity: 2.65574
- Patent Class: 701.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['12813343', '15445086', '11659204', '10258042', '14248863']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4998591731080068
- 35 USC 102 Novelty (BERT): 0.5148885705898476
- Combined Prediction Score: 0.5013621128561909
- Mean Citation Score: 285.59656
- Max Citation Score: 324.30786
- Similarity Product: 244.7657365608323

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test