The emergency brake must stop the vehicle within the specified distance when only one pipeline of the service brake fails.

1. Emergency braking can be an independent system with emergency characteristics or separated from service braking.

2. The emergency braking must be controllable. The arrangement of the emergency braking shall make it easy for the driver to operate. The driver can brake when he holds the steering wheel with at least one hand in his seat. Its operating mechanism can be combined with the operating mechanism of the service brake system or the parking brake system, but the three operating mechanisms shall not be combined

 In 2012, the  dayang company successively passed a number of national technical certifications such as national ISO9001, TS16949, national compulsory certification 3C certification.

 The company introduced the concept of automobile development in 2013 to jointly develop three-wheeled motorcycles with a number of industry experts, and independently develops 3-5 new products each year.

In 2014, the company expanded the scale of the production site by 5 times to meet the market demand of more countries, and the annual production capacity reached 150,000 units.

 Noise control of motor vehicles

Stationary noise of vehicles (except tricycles and low-speed trucks) shall comply with the provisions of GB16170.

The noise level near the driver's ear of automobiles (except three wheel automobiles and low-speed trucks equipped with single cylinder diesel engines) shall be less than or equal to 90dB (A). See Appendix F for the inspection method.

The noise level near the driver's ear of tricycle and low-speed truck equipped with single cylinder diesel engine shall comply with the provisions of relevant standards.