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communication device

A communication device and output signal technology, which is applied in the direction of transportation and packaging, signal transmission system, general control system, etc., can solve the problem of short data update period and achieve the effect of increasing the frequency of data update

Active Publication Date: 2020-03-20
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the data update period in the control unit cannot be made shorter than the signal period

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0033] will refer to Figures 1 to 8 A first embodiment of the present disclosure is described.

[0034] Such as figure 1 and 2 As shown in , the communication device 1 is provided with a primary magnetic sensor 50, a secondary magnetic sensor 60, and an ECU 85 as a control unit. The communication device is applied to, for example, an electric power steering device 80 for assisting a steering operation of a vehicle.

[0035] figure 1 The overall configuration of a steering system 90 provided with an electric power steering device 80 is illustrated.

[0036] The steering wheel 90 is connected to a steering shaft 92 .

[0037] The steering shaft 92 includes an input shaft 11 as a first shaft and an output shaft 12 as a second shaft. The input shaft 11 is connected to a steering wheel 91 . A torque sensor 10 that detects torque applied to a steering shaft 92 is provided between the input shaft 11 and the output shaft 12 . A pinion gear 96 is provided at the end of the out...

no. 2 example

[0135] Figure 9 and 10 A second embodiment of the present disclosure is illustrated.

[0136] The communication device 2 of the present embodiment is provided with a magnetic sensor 70 and an ECU 85 .

[0137] The sensor unit 45 includes a magnetic sensor 70 mounted on the substrate 41 .

[0138] The magnetic sensor 70 includes a first terminal group 71 , a second terminal group 72 , a sealing portion 73 , a main sensor portion 55 and a sub sensor portion 65 .

[0139] The first terminal group 71 protruding from the first side 731 of the sealing portion 73 includes 8 terminals, specifically, the first to eighth terminals 711 to 718 are arranged in this order from the first end 735 . The second terminal group 72 protruding from the second side 732 of the sealing part 73 includes 8 terminals, specifically, the first to eighth terminals 721 to 728 are arranged in this order from the first end 735 . exist Figure 9 In , reference numerals of terminals whose functions are not...

no. 3 example

[0149] Figures 11 to 14 A third embodiment of the present disclosure is illustrated.

[0150] Such as Figure 11 As shown in , the communication device 3 of this embodiment is provided with a primary magnetic sensor 150, a secondary magnetic sensor 160, and an ECU 86 (ie, a controller) as a control unit.

[0151] The ECU 86 controls the driving of the motor 81 according to the steering torque calculated based on the output signals Sd11 , Sd12 output from the magnetic sensors 150 , 160 . The ECU 86 includes a signal acquisition unit 87 and a trigger signal generation unit 88 .

[0152] The trigger signal generator 88 generates a trigger signal Trg1 for requesting transmission of the output signal Sd21. The trigger signal Trg1 is transmitted to the main sensor section 155 through the second terminal 512 which is a communication terminal of the first terminal group 51 .

[0153] The trigger signal generator 88 generates a trigger signal Trg2 for requesting transmission of th...

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PUM

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Abstract

A communication device includes: a plurality of sensors (55, 65, 155, 255, 265, 355, 365), each of which includes at least one sensor element (551, 552, 651, 652) that detects information relating to a single detection target and an output circuit (555, 655) that generates an output signal based on a detection signal of the sensor element and transmits the output signal; and a controller (85, 86) that acquires the output signal. One of the sensors transmits the output signal to the controller at an output timing that is shifted, by a predetermined period shorter than a length of one period of the output signal, from another output timing when another one of the sensors transmits the output signal.

Description

technical field [0001] The present disclosure relates to a communication device. Background technique [0002] Communication means for communicating sensor data to a controller are conventionally known. For example, in Patent Document 1, transmission of sensor data is synchronized by a trigger signal generated by a controller and received by a bidirectional node. [0003] When the control unit simultaneously acquires signals from a plurality of sensor sections, the data update period in the control unit is equal to the signal period. In this case, the data update period in the control unit cannot be made shorter than the signal period. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: JP-2013-546096-A (corresponding to US 2012 / 0158335) Contents of the invention [0007] An object of the present disclosure is to provide a communication device capable of increasing the frequency of data update in a control unit. [0008] According to a...

Claims

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Application Information

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IPC IPC(8): G08C19/22G05B19/042B62D5/04
CPCB62D5/0457G05B19/0423G05B2219/2637G08C19/22
Inventor 小泽崇晴株根秀树藤田敏博林胜彦中村功一仓光修司坂井利光泷雅也
Owner DENSO CORP
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