Assisted driving system and state switching method based on eps state machine

A technology for assisting driving and state switching, which is applied in the direction of steering mechanism, electric steering mechanism, power steering mechanism, etc. It can solve the problem that the driver's steering wheel state is difficult to detect, and achieve the effect of correcting hands-free driving habits and preventing driving direction deviation

Active Publication Date: 2021-04-20
JIANGSU UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

For example, in the document of Chinese Patent Publication No. CN206561835U, in a kind of parking steering wheel returning prompting system disclosed in the literature, it is necessary to add devices such as buzzer, loudspeaker, display screen to prompt returning to correcting, and what is prompted is only the steering wheel of the car under the parking situation. Whether it is back to normal or not, it is difficult to detect the state of the driver's steering wheel in the driving state of the vehicle, these problems have yet to be resolved

Method used

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  • Assisted driving system and state switching method based on eps state machine
  • Assisted driving system and state switching method based on eps state machine
  • Assisted driving system and state switching method based on eps state machine

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Embodiment Construction

[0019] see figure 1 with figure 2 , the assisted driving system based on the EPS state machine of the present invention includes an EPS state machine 5 . The EPS state machine 5 is composed of an ECU 51 , a motor drive module 53 and a signal communication module 54 . The signal communication module 54 is bidirectionally connected to the ECU 51 , and the output end of the ECU 51 is connected to the motor drive module 53 .

[0020] The input end of the signal communication module 54 is connected to the torque sensor 2 via the signal line, and the torque sensor 2 is used to detect the output torque T of the driver for the steering wheel 1 man , and transmit it to the signal communication module 54.

[0021] The output end of the motor driving module 53 is connected to the motor 9 through the control line, the motor 9 is connected to the motor signal module 10 , and the output end of the motor signal module 10 is connected to the signal communication module 54 . The motor 9 o...

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Abstract

The invention discloses an assisted driving system based on an EPS state machine installed on a vehicle and a state switching method thereof. The EPS state machine is composed of an ECU, a motor drive module and a signal communication module. The ECU includes unprepared, prepared, boosted, corrected, The 8 states of reminder, fault, first response and second response automatically complete the state jump during driving according to the signal input of various sensors, realize the conversion of EPS multi-function, and complete the prompt during vehicle driving through the EPS state machine The driver concentrates on driving, using the pulsating torque generated by the motor in the EPS, without affecting the normal driving, the driver is reminded by vibration, reminding the driver to correct the driver's wrong driving habits or prevent the driver from not discovering the accident due to desertion. It can reduce the driving hazards, prevent the deviation of the driving direction that is not intended by the driver, and correct the driver's hands-off driving habits during driving.

Description

technical field [0001] The invention relates to the fields of automobile driving, steering and motor control, and is an auxiliary driving system installed on a vehicle, is an auxiliary driving system based on an electric power steering (EPS) state machine, and has a safety prompting function. Background technique [0002] The state machine is composed of state registers and combinational logic circuits, which can transfer according to the preset state according to the control signal, and is the control center for completing specific operations. The EPS state machine is a control module that switches the working mode of the EPS according to the input signal of the external sensor and according to the preset. For traditional cars, EPS only provides power steering, and does not require a state machine to implement state switching. For EPS with added functions, the state machine must implement state switching. [0003] Assisted Driving System (ADAS) uses various sensors install...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/00B62D5/04
CPCB62D5/003B62D5/046
Inventor 孙晓东金志佳陈龙周卫琪杨泽斌李可
Owner JIANGSU UNIV
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