This standard specifies the performance requirements and test methods for the front and rear end protection devices of automobiles. This standard applies to M1 vehicles. GB 17354-1998 Front and rear end protection devices of automobiles GB17354-1998 Standard download decompression password: www.bzxz.net

GB 17354—1998
Since most of the car models produced in my country come from Europe, the technical content of this standard is equivalent to ECER42 "Uniform Provisions on Approval of Vehicles with Front and Rear Protection Devices (Bumpers, etc.)", and the writing format follows GB/T1.1-1993 "Guidelines for Standardization Work Unit 1: Rules for Drafting and Presentation of Standards Part 1: Basic Provisions for Standard Writing". When converting the ECER42 regulations into this standard, in order to conform to the national conditions of China and the provisions of GB/T1.1-1993, the chapters "Application for Approval", "Approval", "Product Qualification", "Handling of Unqualified Products", "Modification of Models" and Annex 1 and Annex 2 in ECER42 were cancelled, and "Foreword" was added. The article numbers of the remaining chapters were changed accordingly, and their contents remained unchanged or slightly changed. This standard was proposed by the Ministry of Machinery Industry of the People's Republic of China. This standard is under the jurisdiction of the National Automobile Standardization Technical Committee. This standard was drafted by Dongfeng Automobile Engineering Research Institute. The main drafters of this standard are: Sun Delu, Li Sanhong, Yin Shuangqing. 498
National Standard of the People's Republic of China
Front and rear protective devices for passenger cars
Front and rear protective devices for passenger cars
This standard specifies the performance requirements and test methods for front and rear protective devices for passenger cars. This standard applies to Class Mi vehicles.
2 Definitions
This standard adopts the following definitions.
2.1 Protective devices
GB 17354— 1998
eqv ECE R42
Components installed at the front and rear ends of a vehicle shall be designed so that they will not cause serious damage to the vehicle in the event of contact or slight collision. 2.2 Vehicle Type
The type of motor vehicle. Vehicles of the same type shall not differ in the following main aspects: a) Vehicle length and width, structure, size, shape and material of the front and rear parts of the vehicle that affect the collision test results specified in this standard,
b) Engine layout (front, rear, middle) and mass; c) Suspension performance parameters that affect the collision test results specified in this standard. 2.3 Loading test vehicle mass
The curb weight of the vehicle plus the mass of the occupants specified in Table 1 (calculated as 75 kg per person). Table 1 Occupant mass distribution table
Number of seats
2.4 Vehicle angle
Number of occupants
The point of tangency between the vehicle and the vertical plane that is 60° to the longitudinal symmetry plane of the vehicle. Approved by the State Administration of Quality and Technical Supervision on May 6, 1998 2 people in the front row
2 people in the front row
1 person in the back row
2 people in the front row
2 people in the last row
2 people in the front row
3 people in the last row
Allocation method
If there are only 2 seats in the last row, 1 person will sit in the second to last row
Implemented on January 1, 1999
2.5 Reference height
GB17354—1998
The height from the ground of the horizontal plane passing through the reference line of the impactor, at which the vehicle has effective protection devices regardless of whether it is in the state of vehicle curb weight or in the state of load test vehicle weight. 2.6 Reference line
The intersection of the horizontal plane of symmetry of the impact head and the contour of the impact head itself when the A plane of the impactor is perpendicular to the ground. 3 Requirements
After the collision test is carried out in accordance with the conditions and procedures specified in Article 4, the vehicle shall meet the following requirements: 3.1 The lighting and signal devices shall continue to operate normally and be clearly visible. If the lighting devices installed at the factory are out of adjustment, it is allowed to adjust them to meet the specified requirements, but only by conventional adjustment methods. If the filament is broken, it shall be allowed to replace the bulb. 3.2 The engine hood, trunk lid and doors shall be able to open and close normally. The side doors of the vehicle shall not open automatically under the action of a collision. 3.3 The fuel and cooling systems of the vehicle shall not leak, and there shall be no oil or water blockage. The sealing devices and the oil and water tank caps shall also be able to operate normally. 3.4 The exhaust system of the vehicle shall not have any damage or misalignment that prevents its normal operation. 3.5 The transmission system, frame system (including tires), steering and braking systems of the vehicle shall remain in good adjustment and operate normally. 4 Low-speed impact test method
4.1 Test site
The test site should have enough area to set up the drive system of the impactor, to allow the test vehicle to slide after being hit, and to place the equipment required for the test. The ground where the test vehicle is parked should be horizontal, hard and flat. 4.2 Vehicle condition
4.2.1 The vehicle should be in a stopped state.
4.2.2 The front wheels should be in a straight-ahead position.
4.2.3 The tires should be inflated to the pressure specified by the manufacturer. 4.2.4 The brakes should be released and the transmission should be in neutral. 4.2.5 For vehicles equipped with oil-gas suspension, hydraulic or air suspension, and vehicles equipped with automatic leveling suspension (which can automatically level the vehicle according to the load), the test should be carried out under the normal driving conditions specified by the manufacturer. 4.3 Impactor
4.3.1 The impactor should be of solid structure and its impact head should be made of hardened steel. 4.3.2 The shape of the impactor surface should be as shown in Figure 1. 4.3.3 The effective mass of the collision should be equal to the "curb mass" of the test vehicle. 4.3.4 Plane A of the impactor should remain vertical, and the reference line should remain horizontal. 4.3.5 When a collision occurs, the first contact between the impactor and the vehicle should be the impact head and the vehicle's protective devices. When the vehicle is in the "curb mass" and "loaded test vehicle mass" states respectively, the protective devices located between the "vehicle corners" should be able to be intercepted by the horizontal plane passing through the impactor's reference line.
4.3.6 The reference height is 445mm.
4.4 Drive of the impactor
The impactor can be fixed On a trolley (movable barrier), it can also be fixed on the pendulum as part of the pendulum. 4.5 Special device used when using a trolley (movable barrier) If the impactor is fixed to the trolley (movable barrier) by a stopper, the stopper should have sufficient rigidity and should not be deformed during the collision. During the collision, the trolley should be able to move freely and should not be affected by the driving mechanism. 4.6 Special device used when using a pendulum
4.6.1 The distance between the rotation axis of the pendulum and the impact center shall not be less than 3.3m. The baseline of the impactor should be at the same height as the impact center of the pendulum.
GB 17354—1998
Impact head profile
Figure 1 Impactor
4.6.2 During the test, plane A shall always remain parallel to the axis of rotation of the pendulum. 312
Unit: mm
4.6.3 If the pendulum is suspended in a parallelogram, the radius of the motion trajectory of any point on the reference line shall not be less than 3.3m. 4.7 Longitudinal impact test
4.7.1 This test includes two impacts in front of the vehicle and two impacts in the rear. In the two impacts in each direction, one is carried out when the vehicle mass is the "vehicle curb mass" and the other is carried out when its mass is the "loaded test vehicle mass". 4.7.2 In the two impacts in each direction of the vehicle, there is no restriction on the position of the impactor in the first impact, while in the second impact, the position of the mid-vertical plane of the impactor should be no less than 300mm away from the position in the first impact. , and it should be ensured that during these two collisions, the outer contour of the impactor does not exceed the area defined by the two planes passing through the "corners" and parallel to the longitudinal symmetry plane of the vehicle. 4.7.3 The impactor shown in Figure 1 should be placed so that the A plane is perpendicular to the ground, the reference line is horizontal and the reference height reaches 445mm. www.bzxz.net
4.7.4 The placement of the vehicle should be adjusted so that the point between the "corners" contacts the impactor but does not cause the impactor to shake. At the same time, the longitudinal symmetry plane of the vehicle should be perpendicular to the A plane of the impactor. 4.7.5 The collision speed of the vehicle should be controlled at 4+%25km/h. 4.8 Collision test on "corners"
4.8.1 This test includes collisions on one front "corner" and one rear "corner" when the vehicle mass is the "vehicle curb mass", and one collision on the other front "corner" and the other rear "corner" when the vehicle mass is the "loaded test vehicle mass". 4.8.2 The impactor shown in Figure 1 should be placed so that plane A is perpendicular to the ground, the reference line is horizontal and the reference height reaches 445 mm.
4.8.3 The placement of the vehicle should be adjusted so that the point between the "corners" contacts the impactor without causing the impactor to shake. In addition, the following conditions should be met:
GB 17354-1998
a) The A plane of the impactor should form an angle of 60°±5° with the longitudinal symmetry plane of the vehicle. b) The first point of contact during collision should be on the median vertical plane of the impactor (tolerance ±25 mm). 4.8.4 The collision speed of the vehicle should be controlled at 2.5+%1km/h. 5 Provisions on repair, replacement and measurement
5.1 During the test, the protective device and the connecting device used to install it on the vehicle are allowed to be repaired and replaced. 5.2 If the protective device contains automatic recovery material, its automatic recovery time should be reserved in accordance with the manufacturer's regulations between the two tests.
5.3 If the manufacturer requires, a car of the same model can be replaced for each test. 5.4 If the manufacturer so requests, the technical department responsible for the test may allow the use of vehicles that have been used in various tests of other standards (including tests that may damage the vehicle structure) for the various tests of this standard. 5.5 If the collision speed and collision mass during the test are not lower than the requirements of this standard, and the vehicle can meet the specified requirements after the test, it shall be considered to have passed the test.
5.6 Measuring instruments
The measuring accuracy of the instruments used to measure the collision speed described in Articles 4.7.5 and 4.8.4 above shall not be less than 1%. 6 Equivalent test methods
Other equivalent test methods are allowed as long as the test conditions specified in this standard can be complied with and the equivalence of other test methods with this test method can be demonstrated.
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