Slope start-stop auxiliary safety system of motor vehicle
An auxiliary safety and motor vehicle technology, applied in the direction of brakes, manual starting devices, etc., can solve the problems of limited application range and functions, the inability to provide automatic anti-rollback braking safety functions, and the low popularity of hill start assist systems. , to achieve the effects of wide application range, enhanced driving safety and convenient installation
Inactive Publication Date: 2011-07-27
SHANGHAI UNIV OF ENG SCI
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Problems solved by technology
Therefore, the hill start assist system is not popular in China.
[0007] (2) Some existing hill start assist systems are based on electromechanical automatic transmission (AMT) technology, the system needs to accurately identify the starting resistance, and some existing hill start assist systems need to be manually triggered by the driver, so Its scope of use and functionality are limited
[0008] (3) The existing hill start assist system can only work when the vehicle is working (engine running). If the vehicle stalls during the hill start process, the assist start system cannot provide additional automatic anti-rollback braking security function
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[0024] A ramp start and stop auxiliary safety system for motor vehicles, the structure of which is as follows figure 1 As shown, the system is composed of sensors, electronic control units and electric linear actuators. The sensors include slope sensors, speed sensors, accelerator position sensors, clutch sensors and limit sensors. The above sensors are used to collect vehicle working status information. The sensor is communicatively connected with the electronic control unit.
[0025] The electronic control unit (Electronic Control Unit, referred to as ECU) is the core of the control system. It is composed of a microprocessor module, a power module, a data storage module, an input signal conditioning module, an output driver module, and an integrated circuit board and corresponding control software. Its main function is to calculate and process various signals input by sensors and control switches, judge the vehicle tilt angle, whether there is an intention to start and stop,...
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The invention relates to a slope start-stop auxiliary safety system of a motor vehicle. The system comprises a sensor, an electric control unit and a power-driven linear actuator, wherein the sensor is communicated connection with the electric control unit, and the power-driven linear actuator is connected with the other end of the electric control unit through a lead. Compared with the prior art, the invention has wide range of applications and convenience in mounting, provides safety auxiliary guarantee and realizes the vehicle start-stop auxiliary safety function through slope resistance pre-calibration and a corresponding start torque recognition control algorithm, thereby enhancing driving safety.
Description
technical field [0001] The invention relates to an auxiliary safety system, in particular to an auxiliary safety system for starting and stopping a motor vehicle on a slope. Background technique [0002] During daily driving, vehicles often need to temporarily stop and restart on slopes. For existing manual transmission vehicles, when the vehicle starts up on a slope, the clutch pedal needs to be stepped on to a certain position in the middle of the clutch stroke (also called "semi-linkage" position), and the semi-linkage position needs to be determined according to the load and Adjust the control according to the gradient of the slope, that is to say, what position the clutch pedal is in the middle (that is, the size of the engine torque output) needs to be manually adjusted according to specific conditions. Whether the vehicle parks and starts smoothly on the slope depends on the driver's proficiency in the clutch, brake and accelerator operation. For skilled manual gear...
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IPC IPC(8): B60T8/17B60T7/10
Inventor 吴长水龚元明钱宇彬洪永楠胡建虹
Owner SHANGHAI UNIV OF ENG SCI