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1. 发明授权

US07398146B2 Measurement of the maximum adhesion coefficient by measuring stress in a bead of a tire 有权
标题翻译：通过测量轮胎胎圈中的应力来测量最大附着系数
公开(公告)号：US07398146B2
公开(公告)日：2008-07-08
申请号：US11015353
申请日：2004-12-17
申请人： David Bertrand
发明人： David Bertrand
IPC分类号： G01M17/02
CPC分类号： G01N19/02 , B60T8/172 , B60T2210/12
摘要： A method of determining a friction coefficient μ in a contact area of a tire on a road. Fixed points are selected that lie at different azimuths along a circumference of at least one bead of the tire. A shear stress value is measured at each of the fixed points while the tire is rolling on the road. The measured shear stress values are processed to determine the friction coefficient μ.
摘要翻译：一种确定道路上的轮胎的接触区域中的摩擦系数μ的方法。沿着轮胎的至少一个胎圈的圆周，选择位于不同方位角处的固定点。在轮胎在道路上滚动时，在每个固定点处测量剪切应力值。测量剪切应力值，以确定摩擦系数μ。

2. 发明申请

US20080126006A1 Method of timing a remarkable angular position of a sensor carried by a tire 有权
标题翻译：定时轮胎承载的传感器的显着角度位置的方法
公开(公告)号：US20080126006A1
公开(公告)日：2008-05-29
申请号：US11985504
申请日：2007-11-15
申请人： David Bertrand
发明人： David Bertrand
IPC分类号： G01P3/00
CPC分类号： G01D3/028 , B60C23/0408 , G01D1/16
摘要： A method of timing a remarkable angular position (θR) of at least one sensor (12) carried by a tire (10) rotating relative to an external frame of reference. The following steps are performed: forming, from an output signal from the sensor (12), a reference signal suitable for presenting a remarkable extremum during one revolution of the tire (10); determining the time of an origin angular position (θ0) of the sensor as being the time of the remarkable extremum of the reference signal; and determining the time of the remarkable angular position (θR) relative to the time of the origin angular position.
摘要翻译：定时由轮胎（10）承载的至少一个传感器（12）的相对于外部参考框架旋转的显着角位置（θ/ R）的方法。执行以下步骤：从传感器（12）的输出信号形成适于在轮胎（10）的一圈内呈现出极大的极值的参考信号; 确定传感器的原点角位置（θ<0> 0）的时间是参考信号的显着极值的时间; 以及确定相对于原点角位置的时间的显着的角位置（θSUB）的时间。

3. 发明申请

US20050065698A1 Direct determination of the maximum grip coefficient on the basis of measurement of the circumferential extension in a sidewall of a tire 有权
标题翻译：基于轮胎侧壁中的周向延伸的测量来直接确定最大夹持系数
公开(公告)号：US20050065698A1
公开(公告)日：2005-03-24
申请号：US10911047
申请日：2004-08-04
申请人： David Bertrand
发明人： David Bertrand
IPC分类号： B60R16/02 , B60C19/00 , B60T8/172 , G06F17/00
CPC分类号： B60T8/1725
摘要： A method of determining the grip coefficient μ in the contact area of a tire on a road includes the steps of selecting a plurality of fixed points in space (that is to say ones that are fixed in the reference frame associated with the vehicle) which points lie at different azimuths along the circumference in at least one sidewall of the tire, obtaining a corresponding number of measurements of circumferential distance variation (extension or contraction) at these fixed points when the tire is rolling on the road, and the measurement signals are processed so as to extract the grip coefficient μ.
摘要翻译：确定道路上的轮胎的接触区域中的抓地系数μ的方法包括以下步骤：在空间（即，与车辆相关联的参考系中固定的固定点）中选择多个固定点沿着轮胎的至少一个侧壁中的圆周处于不同的方位角，获得在轮胎在道路上滚动时在这些固定点处的圆周距离变化（延伸或收缩）的相应数量的测量，并且处理测量信号以提取握力系数μ。

4. 外观设计

USD900701S1 Watercraft 有权
公开(公告)号：USD900701S1
公开(公告)日：2020-11-03
申请号：US29628740
申请日：2017-12-07
申请人： Damien Leveille-Nizerolle , David Bertrand
设计人： Damien Leveille-Nizerolle , David Bertrand
摘要： FIG. 1 is a perspective view from the left side of a watercraft;
FIG. 2 is a perspective view thereof from the right side;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is an elevation view thereof from the left side;
FIG. 6 is an elevation view thereof from the right side;
FIG. 7 is a perspective view from the top side thereof; and,
FIG. 8 is a perspective view from the bottom side thereof.
The broken lines are for the purpose of illustrating portions of the watercraft that form no part of the claimed design.

5. 发明申请

US20080190187A1 Method of quantifying the utilization of a maximum grip potential of a tire 有权
标题翻译：量化轮胎最大抓地力利用率的方法
公开(公告)号：US20080190187A1
公开(公告)日：2008-08-14
申请号：US12012404
申请日：2008-02-01
申请人： David Bertrand
发明人： David Bertrand
IPC分类号： G01M17/02 , B60C19/00
CPC分类号： B60T8/1725 , G01N19/02
摘要： A method of quantifying the utilization of a maximum grip potential of a tire running on the ground. At two distinct azimuth angles, at least two respective values are determined for a differential extension of the tread of the tire or for a shear of the tread that is homogeneous with said differential extension. The utilization is quantified with the help of a function of the two determined values.
摘要翻译：量化在地面上行驶的轮胎的最大抓地力的利用率的方法。在两个不同的方位角处，对于轮胎的胎面的差分延伸或对于与所述差动延伸部同质的胎面的剪切，确定至少两个相应的值。借助于两个确定值的函数量化利用率。

6. 发明授权

US07099765B2 Direct determination of the maximum grip coefficient on the basis of measurement of the circumferential extension in a sidewall of a tire 有权
标题翻译：基于轮胎侧壁中的周向延伸的测量来直接确定最大夹持系数
公开(公告)号：US07099765B2
公开(公告)日：2006-08-29
申请号：US10911047
申请日：2004-08-04
申请人： David Bertrand
发明人： David Bertrand
IPC分类号： G06F7/00 , B60T8/66 , B60T8/70
CPC分类号： B60T8/1725
摘要： A method of determining the grip coefficient μ in the contact area of a tire on a road includes the steps of selecting a plurality of fixed points in space (that is to say ones that are fixed in the reference frame associated with the vehicle) which points lie at different azimuths along the circumference in at least one sidewall of the tire, obtaining a corresponding number of measurements of circumferential distance variation (extension or contraction) at these fixed points when the tire is rolling on the road, and the measurement signals are processed so as to extract the grip coefficient μ.
摘要翻译：确定道路上的轮胎的接触区域中的抓地系数μ的方法包括以下步骤：在空间（即，与车辆相关联的参考系中固定的固定点）中选择多个固定点沿着轮胎的至少一个侧壁中的圆周处于不同的方位角，获得在轮胎在道路上滚动时在这些固定点处的圆周距离变化（延伸或收缩）的相应数量的测量，并且处理测量信号以提取握力系数μ。

7. 发明申请

US20050159874A1 Measurement of the maximum adhesion coefficient by measuring stress in a bead of a tire 有权
标题翻译：通过测量轮胎胎圈中的应力来测量最大粘附系数
公开(公告)号：US20050159874A1
公开(公告)日：2005-07-21
申请号：US11015353
申请日：2004-12-17
申请人： David Bertrand
发明人： David Bertrand
IPC分类号： B60T8/172 , G01N19/02 , G06F17/00
CPC分类号： G01N19/02 , B60T8/172 , B60T2210/12
摘要： A method of determining a friction coefficient μ in a contact area of a tire on a road. Fixed points are selected that lie at different azimuths along a circumference of at least one bead of the tire. A shear stress value is measured at each of the fixed points while the tire is rolling on the road. The measured shear stress values are processed to determine the friction coefficient μ.
摘要翻译：一种确定道路上的轮胎的接触区域中的摩擦系数μ的方法。沿着轮胎的至少一个胎圈的圆周，选择位于不同方位角处的固定点。在轮胎在道路上滚动时，在每个固定点处测量剪切应力值。测量剪切应力值，以确定摩擦系数μ。

8. 发明授权

US07487669B2 Method of estimating a risk of a lack of connecting with the ground for a motor vehicle 有权
标题翻译：评估与机动车辆地面连接不足的风险的方法
公开(公告)号：US07487669B2
公开(公告)日：2009-02-10
申请号：US12002203
申请日：2007-12-13
申请人： David Bertrand
发明人： David Bertrand
IPC分类号： G01M17/02
CPC分类号： B60T8/172 , B60G2400/8222 , B60G2600/02 , B60G2800/92 , B60G2800/94 , B60T2210/13 , B60W10/04 , B60W10/18 , B60W30/18172 , B60W40/064 , B60W40/068 , B60W50/14 , B60W2050/0071 , B60W2520/26
摘要： According to the method, the risk is estimated as a function of a maximum grip potential μmax of the tire, a utilization percentage Pu representative of the fraction of the maximum grip potential of the tire that is being used, and a magnitude Ps associated with a risk of the tire hydroplaning, in particular a loss of tire area.
摘要翻译：根据该方法，将风险估计为轮胎的最大抓地力妈妈的函数，表示正在使用的轮胎的最大抓地力的分数的利用率Pu以及与轮胎滑坡的风险，特别是轮胎面积的损失。

9. 发明授权

US07203603B2 Method of determining components of forces exerted on a tire and determining the self-alignment torque 有权
标题翻译：确定施加在轮胎上的力的分量并确定自对准扭矩的方法
公开(公告)号：US07203603B2
公开(公告)日：2007-04-10
申请号：US10773015
申请日：2004-02-05
申请人： David Bertrand
发明人： David Bertrand
IPC分类号： G01L1/00
CPC分类号： G01M17/02 , B60T8/1725
摘要： A method of determining at least one characteristic of a tire selected from the three components of a resultant of forces which are exerted by the road on the contact area of a tire and the self-alignment torque generated by the tire, includes the steps of making at least two measurements of circumferential extension or contraction in at least one sidewall of the tire at two fixed points in space, which are situated at different azimuths along the circumference, and based on the measurements deriving a value for the selected characteristic.
摘要翻译：一种确定轮胎的至少一个特征的方法，所述轮胎选自由道路在轮胎的接触区域上施加的力的结果的三个分量以及由轮胎产生的自对准扭矩，包括以下步骤：轮胎的至少一个侧壁中的两个在空间中的两个固定点处的周向延伸或收缩的至少两个测量值，其沿着圆周位于不同方位角处，并且基于导出所选特征值的测量结果。

10. 发明申请

US20050065699A1 Estimating maximum friction coefficient based on knowledge of the loads and self-alignment torque generated in a tire contact zone 有权
标题翻译：基于在轮胎接触区域中产生的载荷和自对准扭矩的知识来估计最大摩擦系数
公开(公告)号：US20050065699A1
公开(公告)日：2005-03-24
申请号：US10911048
申请日：2004-08-04
申请人： David Bertrand
发明人： David Bertrand
IPC分类号： G01M17/02 , B60C19/00 , B60R16/02 , B60T8/172 , G06F7/00
CPC分类号： B60T8/1725 , B60T2210/12
摘要： A method for estimation of the maximum grip coefficient on the basis of knowledge of the forces and the self-alignment torque which are generated in the contact area of a tire, includes the steps of: selecting a plurality of fixed points in space, which lie at different azimuths along the circumference in at least one sidewall of the tire, carrying out a corresponding number of measurements of circumferential distance variation (extension or contraction) at these fixed points when the tire is rolling on the road, processing the measurement signals so as to extract the three components of a resultant of forces which are exerted by the road on the contact area of a tire and the self-alignment torque generated by the tire from them, processing the evaluation signals of the three components of a resultant of forces which are exerted by the road on the contact area of a tire and of the self-alignment torque generated by the tire so as to extract the said grip coefficient μ from them.
摘要翻译：基于在轮胎的接触区域中产生的力和自对准扭矩的知识来估计最大抓地力系数的方法包括以下步骤：选择空间中的多个固定点，其中，在轮胎的至少一个侧壁中沿着圆周的不同方位角处，在轮胎在道路上滚动时执行相应数量的在这些固定点处的周向距离变化（延伸或收缩）的测量值，处理测量信号以便将由道路施加的力的结果的三个部分提取到轮胎的接触区域和由轮胎产生的自对准扭矩，对三个部件的评价信号进行处理，由道路施加在轮胎的接触区域和由轮胎产生的自对准扭矩，从而从其中提取所述抓握系数mu。

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