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公开(公告)号：US20130312539A1
公开(公告)日：2013-11-28
申请号：US13897827
申请日：2013-05-20
Applicant: DENSO CORPORATION
Inventor： Osamu SHIMOMURA , Yoshiki TAKAHASHI , Kenji TAKEDA , Shigetoshi FUKAYA
IPC: G01L3/10
Abstract: A torque sensor includes: a torsion bar; a multi-pole magnet; a pair of yokes on an outside of the multi-pole magnet in a radial direction and providing a magnetic circuit in a magnetic field generated by the multi-pole magnet; and a pair of magnetic sensors arranged along a circumferential direction. Each magnetic sensor includes a magnetism sensing part for detecting a magnetic flux density generated in the magnetic circuit, and outputs a detection signal to an external computing device. The magnetic sensors output the detection signals to the external computing device such that the computing device calculates a sum of outputs or a difference of outputs of the magnetic sensors so as to cancel a variation of the outputs produced by a magnetic flux generated from the multi-pole magnet and directly reaching the magnetism sensing parts.
Abstract translation: 扭矩传感器包括：扭杆; 多极磁铁 在多极磁铁的外侧沿径向的一对磁轭，并在由多极磁铁产生的磁场中提供磁路; 以及沿圆周方向布置的一对磁性传感器。 每个磁传感器包括用于检测在磁路中产生的磁通密度的磁感测部分，并将检测信号输出到外部计算装置。 磁传感器将检测信号输出到外部计算装置，使得计算装置计算出磁传感器的输出和输出的差值之和，以便消除由多通道产生的磁通产生的输出的变化， 直到磁感应部件。
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公开(公告)号：US20140130612A1
公开(公告)日：2014-05-15
申请号：US14063136
申请日：2013-10-25
Applicant: DENSO CORPORATION
Inventor： Yoshiki TAKAHASHI , Shigetoshi FUKAYA , Hideki KABUNE
Abstract: A torque sensor has a magnetic sensor, which is composed of a first magnetic detecting element, a second magnetic detecting element and a comparator. The first magnetic detecting element outputs an output signal of a provisional detection value, while the second magnetic detecting element outputs an output signal of a reference value. The comparator compares the provisional detection value and the reference value and outputs the provisional detection value as an authorized detection value, when a difference value between the provisional detection value and the reference value is smaller than a predetermined threshold value.
Abstract translation: 扭矩传感器具有由第一磁检测元件，第二磁检测元件和比较器构成的磁传感器。 第一磁检测元件输出临时检测值的输出信号，而第二磁检测元件输出参考值的输出信号。 当临时检测值和参考值之间的差小于预定阈值时，比较器比较临时检测值和参考值，并将临时检测值作为授权检测值输出。
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公开(公告)号：US20130152702A1
公开(公告)日：2013-06-20
申请号：US13716789
申请日：2012-12-17
Applicant: DENSO CORPORATION , NIPPON SOKEN, INC.
Inventor： Yoshiki TAKAHASHI , Shigetoshi FUKAYA , Osamu SHIMOMURA
IPC: G01L3/10
Abstract: A torsion bar has first and second end portions that are fixed to input and output shafts, respectively, to coaxially connect between the input and output shafts. A multipolar magnet is fixed to the input shaft. First and second magnetic yokes are fixed to the output shaft. Magnetic sensors are held between magnetic flux collecting portions of first and second magnetic flux collecting rings, which are magnetically coupled to the first and second magnetic yokes, respectively. In each of the magnetic flux collecting portion, a connecting section and a mounting section are configured such that a width of the connecting section is smaller than a width of the mounting section.
Abstract translation: 扭杆具有分别固定到输入和输出轴的第一和第二端部，以在输入和输出轴之间同轴连接。 多极磁体固定在输入轴上。 第一和第二磁轭固定在输出轴上。 磁传感器被保持在分别磁耦合到第一和第二磁轭的第一和第二磁通集合环的磁通收集部分之间。 在每个磁通收集部分中，连接部分和安装部分被构造成使得连接部分的宽度小于安装部分的宽度。
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公开(公告)号：US20210376673A1
公开(公告)日：2021-12-02
申请号：US17400995
申请日：2021-08-12
Applicant: DENSO CORPORATION
Inventor： Yoshiki TAKAHASHI , Shun TAKEUCHI
Abstract: A rotor has a rotor core made of a magnetic material, a permanent magnet provided in a magnet insertion hole of the rotor core, and a cushioning material. The cushioning material is provided at a location where a distance between a wall surface of the magnet insertion hole and the permanent magnet is the narrowest, on both sides in a rotational direction with respect to the permanent magnet.
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