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    • 1. 发明申请
    • MULTI -PLATE APPARATUS AND METHOD FOR CHECKING THE BRAKING SYSTEM OF LAND VEHICLES WITH AT LEAST TWO AXLES
    • 至少两轴检查土地车辆制动系统的多片装置和方法
    • WO2016128899A2
    • 2016-08-18
    • PCT/IB2016/050687
    • 2016-02-10
    • VAMAG S.R.L.
    • CROSTA, GianfrancoRATTI, Alessandro
    • G01L5/28G01M17/04
    • G01L5/288G01M17/04
    • A multi-platform system and a relative method for checking the braking ability of vehicles with at least two wheel axes, as well as a checking method of the suspensions employing such system is disclosed. The system comprises pairs of detection plates, aligned according to a motion direction on two parallel paths, apt to detect horizontal and vertical components of a stress transferred by the vehicle wheels to the surface of said plates, wherein: - there are provided at least three pairs of aligned plates, mutually dimensioned and spaced apart so as to prevent the wheels of a single axis from simultaneously resting on two pairs of plates and the wheels of multiple axes from simultaneously resting on a same pair of plates; a checking unit is furthermore provided which detects the development over time of said horizontal (Fh(i)) and vertical (Fv(i)) components of the stress and determines when the wheels of an axis get on and off a single plate (P n ) based on the measurement peaks of said vertical component (Fv(i)) of the stress; - said checking unit has data processing means apt to integrate over time the measurements of said horizontal component (Fh(i)> of the stress on a first plate (P n ) and on the subsequent one (P n+1 ) when it is detected, within a measurement time range of the braking action (t w1 - t w2 ) that said vertical component (Fv(i)) of the stress on said first plate (P n ) undergoes a significant reduction and said vertical component (Fv(i)) of the stress on said subsequent platform (P n+1 ) undergoes a significant increase.
    • 公开了一种用于检查具有至少两个轮轴的车辆的制动能力的多平台系统和相关方法,以及使用该系统的悬架的检查方法。 该系统包括成对的检测板,其根据两条平行路径上的运动方向对准,适于检测由车轮传递到所述板的表面的应力的水平和垂直分量,其中: - 提供至少三个 一对对齐的板,它们的尺寸和间隔相互匹配,以防止单个轴的轮子同时搁置在两对板上,并且多个轴的轮子同时搁置在同一对板上; 还提供检查单元,该检查单元检测应力的所述水平(Fh(i))和垂直(Fv(i))分量随时间的发展并且确定轴的轮何时接通和断开单个板(P 基于应力的所述垂直分量(Fv(i))的测量峰值, - 所述检查单元具有数据处理装置,所述数据处理装置适于随时间积分所述水平分量(F h(i)>第一板(P n)上的应力的测量值)和随后的( 当在制动作用的测量时间范围内(t w1 -t w2)检测到所述垂直方向 在所述第一板上的应力的组分(Fv(i))经历显着减小并且所述后续平台上的应力的所述垂直分量(Fv(i))(P n + 1)会显着增加。
    • 2. 发明公开
    • SYSTEM FOR CHECKING THE ATTITUDE ANGLES OF THE WHEELS OF A LAND VEHICLE, IN PARTICULAR FOR A CONTACTLESS CHECK, AND ASSOCIATED METHOD OF CHECKING
    • EP4235094A1
    • 2023-08-30
    • EP23158172.9
    • 2023-02-23
    • Vamag S.r.l.
    • CROSTA, GiovanniRATTI, Alessandro
    • G01B11/275
    • There is described a checking system and an associated method for the contactless checking of the attitude angles of the wheels of a land vehicle (V), comprising
      - at least one device for detecting the toe angle of the wheels of a vehicle (V) equipped with a pair of distance detection units (S 1 , S 2 , ... Sn) each capable of measuring a wheel distance between a common reference plane (A-A') parallel to a through-lane (P-P') and a reference point on a lateral surface of a vehicle (V) including a wheel moving with respect to said at least one pair of distance detection units (S 1 , S 2 , ... Sn), wherein
      - the system includes a single toe angle detection device incorporated on a single vertical measuring structure (1), which is arranged on only one side of said through-lane (P-P'), on which said at least one pair of distance detection units (S 1 , S 2 , ... Sn) is installed at a height (h) from a running plane (F) of said wheels of the land vehicle (V) and at a mutual separation (D) along a horizontal plane,
      - said wheel distance being detected on a front wheel and a rear wheel of the vehicle (V) along directrix lines (L 1 and L 2 ) orthogonal to said through-lane (P-P') and wherein
      - said at least one pair of distance detection units (S 1 , S 2 , ... Sn) is configured so as to detect said wheel distance of at least two points ((a(N-1), b(N-1), c(N-1), d(N-1), a(N), b(N), c(N), d(N)) for each of said front and rear wheels and to determine at least the following parameters:
      a first direction of advancement of the vehicle (V) on a front wheel as α = (a(N)-a(N-1))/D;
      a direction on a horizontal plane of a front wheel as β = (a(N-1)-b(N-1))/Ha;
      an apparent front wheel toe angle as β - α;
      a second direction of advancement of the vehicle (V) on a rear wheel as α1 = (c(N)-c(N-1))/D;
      a direction on a horizontal plane of a rear wheel as γ = (c(N-1)-d(N-1))/Hp;
      an apparent rear wheel toe angle as γ - α1;
      where D is said mutual separation, Ha is a horizontal distance between two points (a, b) on the front wheel and Hp is a horizontal distance between two points (c, d) on the rear wheel;
      at least said parameters being combined to supply a check index.
    • 3. 发明公开
    • MULTI -PLATE APPARATUS AND METHOD FOR CHECKING THE BRAKING SYSTEM OF LAND VEHICLES WITH AT LEAST TWO AXLES
    • 至少两轴检查土地车辆制动系统的多片装置和方法
    • EP3256830A2
    • 2017-12-20
    • EP16713986.4
    • 2016-02-10
    • Vamag S.r.l.
    • CROSTA, GianfrancoRATTI, Alessandro
    • G01L5/28G01M17/04
    • G01L5/288G01M17/04
    • A multi-platform system and a relative method for checking the braking ability of vehicles with at least two wheel axes, as well as a checking method of the suspensions employing such system is disclosed. The system comprises pairs of detection plates, aligned according to a motion direction on two parallel paths, apt to detect horizontal and vertical components of a stress transferred by the vehicle wheels to the surface of said plates, wherein: - there are provided at least three pairs of aligned plates, mutually dimensioned and spaced apart so as to prevent the wheels of a single axis from simultaneously resting on two pairs of plates and the wheels of multiple axes from simultaneously resting on a same pair of plates; a checking unit is furthermore provided which detects the development over time of said horizontal (Fh(i)) and vertical (Fv(i)) components of the stress and determines when the wheels of an axis get on and off a single plate (Pn) based on the measurement peaks of said vertical component (Fv(i)) of the stress; - said checking unit has data processing means apt to integrate over time the measurements of said horizontal component (Fh(i)> of the stress on a first plate (Pn) and on the subsequent one (Pn+1) when it is detected, within a measurement time range of the braking action (tw1 - tw2) that said vertical component (Fv(i)) of the stress on said first plate (Pn) undergoes a significant reduction and said vertical component (Fv(i)) of the stress on said subsequent platform (Pn+1) undergoes a significant increase.
    • 4. 发明公开
    • MULTI-PLATFORM SYSTEM FOR CHECKING THE BRAKING APPARATUS OF LAND VEHICLES HAVING AT LEAST TWO AXLES
    • EP4102200A1
    • 2022-12-14
    • EP22176182.8
    • 2022-05-30
    • Vamag S.r.l.
    • CROSTA, GianfrancoRATTI, Alessandro
    • G01L5/28
    • A brake check multi-platform system and a brake checking method for a braking capacity of a vehicle with at least two wheel axles is disclosed, comprising pairs of detection platforms aligned according to a direction of movement on two parallel paths, spaced apart by a distance related to the wheelbase of a vehicle, each detection having presenting
      at least a resting surface configured with detection and measuring means apt to detect at least a horizontal (Fx(i), Fy(i)) and vertical (Fz(i), p(i)) component of a stress applied by the vehicle wheels to such surfaces, as well as
      at least a checking unit which detects the trend over time of said at least a horizontal (Fx(i), Fy(i)) and vertical (Fz(i), p(i)) component of the stress
      said at least a checking unit having data processing means apt to integrate in time said at least a horizontal component (Fx(i), Fy(i)) and vertical component (Fz(i), p(i) ) for each wheel of said wheel axles,
      wherein said checking unit is arranged to determine, during a braking action of said vehicle on said detection platforms, at least
      coordinates of a centre of gravity (C.G.) in dynamic conditions, thus defined: xb = ∑ x i * p i / ∑ p i , yb = ∑ y i * p i / ∑ p i
      where x(i) and y(i) are the coordinates x and y, respectively, on a resting plane of the i th wheel and p(i) is the vertical component (Fz(i)) of the stress detected for said i th wheel,
      and coordinates of a centre of the braking forces (C.F.) in dynamic conditions, thus defined: xf = ∑ x i * f i / ∑ f i , yf = ∑ y i * f i / ∑ f i ,
      and determine a risk condition warning proportional to a relationship between the positions of said centre of gravity (C.G.) and said centre of the braking forces (C.F.).