Guangzhou continues to improve its three-dimensional urban public transport system and plans to promote more than 10,000 all-electric buses in 2018

The Guangzhou transport commission recently released its 2018 transport development plan. In 2018, Guangzhou will continue to improve the three-dimensional urban public transport system, and help citizens to gradually improve the quality of travel services.

This year, according to the development plan, the construction in Guangzhou for the first phase of line 14, 20 # 1, Guang-fo line (YanGang to drain the beijiao) three rail lines, such as total mileage will orbit close to 500 kilometers, the operating range of the third, the world's top ten, make up the "iron deficiency" of Conghua, 11 administrative region in the city are all in rail transit coverage; At the same time, the annual optimization and adjustment and the opening of no less than 35 new bus lines were completed, the public transport weak areas and the new metro line station bus connection services were strengthened, and the coverage of public transport services was further improved in breadth and depth; Combining the rapid transformation of Guangzhou avenue, optimize the bus routes of Guangzhou avenue, and create high-quality bus travel services of Guangzhou avenue.

This year, Guangzhou will also open a new 100 kilometers of bus lanes, focusing on the access to the city and the original area of the road coverage of blind areas, when the total mileage of bus lanes will break through 500 kilometers; Synchronous also accelerate the promotion of electric bus in Guangzhou, Guangzhou this year will add or update the bus 100% pure electric buses, and strive to achieve the city before the end of the year to promote the use of pure electric buses more than 10000; In addition, Guangzhou will also promote the use of public transport and subway all-in-one CARDS to provide the public with universal and convenient all-in-one card services.

Guangzhou traffic committee revealed that, with the continuous deepening of the establishment of "bus city" in Guangzhou, Covering a wider, higher quality, more sustainable, much more Guangzhou characteristic model comprehensive urban public transportation system will be gradually built.

Precision

In order to obtain the accurate capacity of lithium ion battery, the current and voltage in charging and discharging modes need to be measured accurately. Combined with the precision ADC, DAC and other components in the system, ADI's ad8450/1 and ADP1972 solutions enable high-precision measurement and setting.

Low system cost

· higher switching frequencies support the use of smaller, less expensive power components such as inductors and capacitors

· energy recycling helps reduce operating costs

· with higher accuracy, ad8450/1 can reduce the cost of thermal management and simplify the design of control loop

· ad8450/1 adopts unique instrument amplifier design, which can shorten the calibration time in the manufacturing process by half and guarantee longer performance time

· integrated solutions allow for smaller system sizes and lower equipment and maintenance costs.

ADI solution

The system block diagram

The following is a system diagram from the dc bus to the battery, including microcontroller, analog front end and controller, PWM controller, high voltage MOSFET driver, power level (MOSFET, inductance, capacitance, shunt resistance), voltage/current read (ADC), and voltage/current set (DAC).

The page contains the contents of the machine translation.