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公开(公告)号：EP3250424B1
公开(公告)日：2020-09-02
申请号：EP16703919.7
申请日：2016-01-25
申请人： Nira Dynamics AB
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公开(公告)号：EP2137010B1
公开(公告)日：2019-11-20
申请号：EP07723344.3
申请日：2007-03-16
申请人： Nira Dynamics AB
发明人： HALL, Peter , GUSTAVSSON, Tony
IPC分类号： B60C23/06
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公开(公告)号：EP3335051A1
公开(公告)日：2018-06-20
申请号：EP15749988.0
申请日：2015-08-10
申请人： Nira Dynamics AB
摘要： The present disclosure relates to the estimation of a velocity of a first object using accelerometer signals, indicating an acceleration of the first object and/or a second object coupled to a first object. To this end, a characteristic frequency in the accelerometer signal spectrum may be determined, preferably by applying a parametric model or by performing a spectrum analysis, and used as a basis to estimate the velocity of the first object based on the determined characteristic frequency. The characteristic frequency may be determined by identifying the frequency having the maximum spectral amplitude or by identifying the fundamental frequency or a particular harmonic in the spectrum.
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公开(公告)号：EP3206924A1
公开(公告)日：2017-08-23
申请号：EP16816197.4
申请日：2016-12-16
申请人： Nira Dynamics AB
IPC分类号： B60T8/172
CPC分类号： B60T8/172 , B60T2210/12 , B60T2270/86
摘要： The disclosed invention makes use of slip related values to calculate friction related values and tire stiffness related values and feeds back an estimated tire stiffness relates value or a calculated friction related as a basis for further calculations. In particular, the disclosure relates to methods, apparatuses and computer program products to achieve the mentioned objective.
摘要翻译： 所公开的发明利用滑移相关值来计算摩擦相关值和轮胎刚度相关值，并且反馈估计的轮胎刚度相关值或相关的计算摩擦作为进一步计算的基础。 特别地，本公开涉及用于实现所述目的的方法，装置和计算机程序产品。
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5.发明公开METHOD, SYSTEM AND COMPUTER PROGRAM OF ISSUING A TIRE PRESSURE DEVIATION WARNING 审中-公开方法，系统和计算机程序来进行轮胎压力警告豁免
公开(公告)号：EP2137011A1
公开(公告)日：2009-12-30
申请号：EP07723345.0
申请日：2007-03-16
申请人： Nira Dynamics AB
IPC分类号： B60C23/06
CPC分类号： B60C23/061 , B60C23/062
摘要： The invention is directed to a system, a method and a computer program including program code for carrying out the method, when executed on a processing system, of the tire low pressure warning of a vehicle. The system comprises an input unit (3) adapted to receive a vehicle signal. It further comprises a determination unit (2,4,5) adapted to determine a tire pressure signal (P) indicative of a tire pressure deviation in the vehicle's tire on the basis of the vehicle signal. Finally, it comprises a warning unit (10) adapted to issue a warning signal only after the tire pressure signal (P) has indicated a predetermined pressure deviation (ΔP0) for a minimum period of time (ΔTmin).
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公开(公告)号：EP2137006A1
公开(公告)日：2009-12-30
申请号：EP07711970.9
申请日：2007-03-16
申请人： Nira Dynamics AB
IPC分类号： B60C23/06
CPC分类号： B60C23/061 , B60C23/062
摘要： A method, system and computer program product for detecting a tire pressure deviation in a tire of a vehicle by determining tire pressure indicating data indicative of a tire pressure condition of the tire and determining tire pressure deviation data indicative of a tire pressure deviation in the tire.
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公开(公告)号：EP1274613B1
公开(公告)日：2008-11-26
申请号：EP01924048.0
申请日：2001-04-12
申请人： Nira Dynamics AB
IPC分类号： B60T8/00
CPC分类号： B60T8/1706 , B60C23/061 , B60C23/062 , B60T8/1725 , B60T8/1755 , B60T2210/13 , B60T2240/03 , B60T2250/06
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公开(公告)号：EP1642140A1
公开(公告)日：2006-04-05
申请号：EP03817395.1
申请日：2003-07-07
申请人： Nira Dynamics AB
CPC分类号： B60T8/172 , B60C23/061 , B60T2250/04 , G01P3/48 , G01P3/66 , G01P3/803
摘要： A method of determining the velocity (ν) of a vehicle is provided. The vehicle has at least one pair of a front and a rear wheel which are spaced by a wheel spacing (B). Front and rear wheel speed signals (ω) are determined which are indicative of the time dependent behavior of the front and rear wheel speeds, respectively. The front and rear wheel speed signals ( ω) are correlated in order to determine a specific correlation feature indicative of the time delay (τ) between the front wheel and rear wheel speed signals. The velocity (ν) of the vehicle is determined based on said correlation feature and the wheel spacing (B).
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公开(公告)号：EP1558992A1
公开(公告)日：2005-08-03
申请号：EP02787584.8
申请日：2002-11-06
申请人： Nira Dynamics AB
CPC分类号： G06F17/17 , B60C23/06 , H03H17/028 , H03H2218/14
摘要： The invention is directed to a digital signal processing method and system for digitally processing a discretized in-put signal (12) provided in form of a plurality of discrete input signal values at corresponding discrete input time instants which are distributed non-equidistantly in time. The method comprises a conversion of the input signal (12) to a discretized output signal (16) representing the input signal (10) with discrete output signal values at discrete output time instants which are distributed equidistantly in time, wherein the conversion is carried out by a linear interpola-tion (14). The weight factors (w(i,n)) of the linear interpo-lation are derived from an impulse response function of a filter (18).
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10.发明公开
公开(公告)号：EP1558456A1
公开(公告)日：2005-08-03
申请号：EP03751701.8
申请日：2003-10-15
申请人： Nira Dynamics AB
IPC分类号： B60K28/16 , B60K17/348
CPC分类号： B60K17/3462 , B60K23/0808 , B60T8/172 , B60T2210/12 , B60W40/064 , B60W2520/26 , B60W2520/28 , B60W2550/148
摘要： A system for determining friction between a surface and a tire of a driven wheel in a wheeled vehicle having a first and a second driven wheel, comprising the steps and functions of: - calculating slip values of a first and a second driven wheel dependent on the angular velocity of said first and second driven wheels; - calculating normalised traction forces of said first and second driven wheels dependent on the torque distribution between said first and second driven wheels; - calculating a friction estimate θf, θr for each of said first and second driven wheels dependent on a predetermined relation between said calculated slip and said calculated normalised traction forces. The friction estimation system combined with a transmission coupling having a variable torque distribution.
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