GB 15085-2013Motor vehicles-windscreen wiper and washer systems - Performance requirements and test methods (English PDF)

5.4.2 and 5.4.4 of the 1989 edition].

This Standard was drafted by reference to the European Communities

78/318/EEC Council Directive on the approximation of the laws of the Member

States relating to the wiper and washer systems of motor vehicles (2007 edition).

The major differences between this Standard and Directive 78/318/EEC as well

as the corresponding reasons are as follows.

— The approval-related contents are not involved in this Standard.

Therefore, DELETE Chapter 3 "Applications for EEC type-approval",

Chapter 4 "Granting of EEC type-approval", Chapter 7 "Markings",

Chapter 8 "Amendments to models and approvals" and Chapter 9

"Conformity of production" in Annex I, Annex VI "Information document

(vehicle)", Annex VII "Information document (separate technical unit)",

Annex VIII "Type-approval certificate (vehicle)" and Annex IX "Type-

approval certificate (separate technical unit)" of Directive 78/318/EEC.

— The contents below are not involved in this Standard. Therefore, DELETE

the definitions of the following nouns in Annex I of Directive 78/318/EEC.

"three-dimensional reference grid", "primary reference marks", "actual

torso angle", "design torso angle", "longitudinal seat-adjustment range"

and "extended seat-adjustment range" (SEE Sections 2.2, 2.3, 2.4, 2.5,

2.11 and 2.12 in Annex I of Directive 78/318/EEC).

— This Standard involves the electric drive system instead of the manpower

drive system. Therefore, DELETE the provisions "on the applied force of

the manpower drive system" in the table shown in Section 6.2.1.1 of

Annex I in Directive 78/318/EEC (SEE the table shown in Section 6.2.1.1

of Annex I in Directive 78/318/EEC).

— Annexes II, III and IV use China's current relevant standards. The

approval-related contents in Annexes VI to IX are not involved in this

Standard. Therefore, DELETE the Annex II "Procedure for determining

the H point and the actual seat-back angle and for verifying the relative

positions of the R and H points and the relationship between the design

seat-back angle and the actual seat-back angle", Annex III "Method for

determining the dimensional relationships between the vehicle's primary

reference marks and the three-dimensional reference grid", Annex IV

"Procedure for determining vision areas on windscreens of category M1

vehicles in relation to the V points", Annex VI "Information document

No...", Annex VII "Information document No...", Annex VIII "Model" and

Annex IX "Model" of Directive 78/318/EEC.

Compared with Directive 78/318/EEC, this Standard has made structural

adjustment. The contrast table for the section numbers of this Standard and

Directive 78/318/EEC is listed in Annex A.

Considering China's national conditions, when using the Directive 78/318/EEC,

this Standard has made the following editorial modifications.

— MODIFY "this Directive" as "this Standard";

— MODIFY "Definitions" as "Terms and definitions";

— ADD the Annex A (informative).

This Standard was proposed by the Ministry of Industry and Information

Technology of the People's Republic of China.

This Standard shall be under the jurisdiction of the National Technical

Committee for Standardization of Automobiles (SAC/TC 114).

Drafting organizations of this Standard. China Quality Certification Center,

Wuhan Auto Body Accessories Institute, and Technical Center of FAW Group

Corporation.

Main drafters of this Standard. Li Zaihua, Qu Yanping, Yao Peng and Zhang Yu.

The previous released editions substituted by this Standard are as follows.

— GB 15085-1994;

— GB 11565-1989.

Motor vehicles - Windscreen wiper and washer systems -

Performance requirements and test methods

3.1 Wiper blade

It is equipped with the wiping component used for sweeping the outer surface

of the windscreen.

3.2 Sweep field

It refers to the area that can be swept by the wiper blade within the specific

range of the outer surface of the windscreen.

3.7 Sweep cycle

It refers to the process that the blade returns back to the initial position after

moving from one end to the other end of the sweep range when the wiper is in

normal status.

3.8 Transparent area of a windscreen

It refers to the windscreen of the motor vehicle and the area where the surface

transmittance (during the measurement when light rays are perpendicular to

the surface) is not less than 70%.

3.9 Nozzle

It refers to the device which serves to direct the wash fluid to the outer surface

of the windscreen.

3.10 Jet ability

It refers to the nozzle's ability of jetting wash fluid onto the target position of the

windshield when the washer system is in normal operation.

3.11 Wash fluid

It refers to the aqueous solution consisting of water with a hardness of less than

205g/t and appropriate amount of additives.

3.12 Target position

It refers to the position specified by the motor vehicle manufacturer, where the

wash fluid is jetted to on the outer surface of the windscreen.

4.1 Performance requirements of the windscreen-wiper system

4.1.1 Each vehicle shall be equipped with at least one automatic windscreen-

wiper system. The automatic windscreen-wiper system refers to a system which

is able to function without any action by the driver other than that needed for

starting and stopping the windscreen wiper when the vehicle's engine is running.

4.1.3 The windscreen wiper shall have at least two sweep frequencies.

4.1.4 The sweep frequencies referred to in Section 4.1.3 shall be achieved as

set out in Sections 5.1.1 to 5.1.3 and 5.1.5.

4.1.5 Intermittent operation windscreen-wiper system may be used for the

purposes of complying with the requirements of Section 4.1.3, provided that

one of the frequencies complies with the requirements of Section 4.1.3 a), and

that one of the other frequencies obtained when the main frequency is

interrupted is not less than 10 cycles/min.

4.1.9 When subjected to a relative air speed equal to 80% of the vehicle's

maximum speed, but not exceeding 160km/h, the windscreen-wiper system,

operating at maximum frequency, shall be able to sweep the area A specified in

Section 4.1.2, with the same efficiency and under the same conditions as set

out in Section 5.1.7 b).

4.1.10 The wiper-arm mounting shall enable the wiper arm to be displaced

from its position on the windscreen, so as to allow the windscreen to be

manually cleaned.

4.2 Performance requirements of the windscreen-washer system

4.2.1 Each vehicle shall be fitted with a windscreen-washer system which is

capable of withstanding the loads produced when the nozzles are plugged and

the system is actuated in accordance with the procedure set out in Sections

5.2.1 and 5.2.2.During normal operation, the windscreen-washer system shall

be capable of jetting fluid to the target position on the windscreen, without any

leakage or disconnecting with the washer system piping.

4.2.2 The windscreen-washer system shall be able to function properly after

being conducted with the temperature cycling test specified in Sections 5.2.3

and 5.2.4.

5.1 Windscreen-wiper system

5.1.1 Unless otherwise specified, the tests described shall be carried out

under the following conditions.

5.1.2 Compressed air operated or vacuum operated windscreen-wiper

system shall be able to function continuously at the prescribed sweep

frequencies whatever the engine speed or engine load.

5.1.3 The sweep frequencies of the windscreen-wiper system shall comply

with the requirements of Section 4.1.3 after a preliminary operating time of

20min on a wet surface.

5.1.7 For the purpose of measuring the windscreen-wiper field prescribed in

Section 4.1.2, the outer surface of the windscreen shall be treated as indicated

in Sections 5.1.5 and 5.1.6 or other equivalent methods. The measuring

procedures are as follows.

5.1.8 The requirements of Section 4.1.11 shall be met after the vehicle has

been in an ambient temperature of -18°C ± 3°C for a minimum of 4h. The

windscreen-wiper system is to be set to operate under the conditions set out in

Sections 5.1.1 c), d), e) and f) with the control system at the position of

maximum frequency. There are no requirements regarding the sweep field.

5.2 Windscreen-washer system

5.2.1 Strength test

5.2.1.1 The windscreen-washer system shall be filled with water, and placed

in an ambient temperature of 20°C ± 2°C for a minimum of 4h. All the nozzles

shall be plugged. Furthermore, the windscreen washer shall be actuated six

times in 1min, each time for at least 3s.

5.2.3.2 The windscreen-washer system shall be filled and fully primed with

the mixture (low-temperature windscreen-washer fluid consisting of a 50%

solution of methanol, or alternatively isopropyl alcohol, in water of a hardness

of not greater than 205g/t), so as to exhaust air. The windscreen-washer system

shall be placed in an ambient temperature of -18°C ± 3°C for a minimum of 4h.

CONDUCT the strength test to the windscreen-washer system according to the

methods described in Section 5.2.1.

5.2.4 High-temperature exposure test

5.2.5 Washer system capability test

5.2.5.1 The windscreen-washer system shall be filled with water. With the

vehicle stationary and no significant wind effect, the washer nozzle or nozzles

(if adjustable) shall be pointed towards the target position on the outer surface

of the windscreen. If the system is powered by an electric pump, the

requirements of Sections 5.1.1 c), d), e) and f) shall apply.

5.2.5.2 The outer surface of the windscreen shall be treated according to the

methods described in Sections 5.1.5 and 5.1.6.

5.2.5.3 The windscreen washer and wiper shall then be actuated according to

the specified methods for 10 cycles of automatic operation of the windscreen-

wiper system at maximum frequency. MEASURE the proportion of the sweep

area in the area A afterwards.

5.3 Method for measuring the sweep field of the windscreen wiper

5.3.1 Drawing measurement

The measuring procedures are as follows.

5.3.2 Rack measurement

The measuring procedures are as follows.

5.3.3 Actual measurement

The measuring procedures are as follows.

5.3.4 Measurement selection

The manufacturer can select one of the measurements specified in Sections

5.3.1, 5.3.2 and 5.3.3 for measuring the sweep field of the windscreen wiper.

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