不久前，我国客车厂商顺利拿下巴基斯坦卡拉奇市100台18米新能源公交订单，吉泰科作为新能源电机控制器行业优质供应商，为该批公交提供了新能源电机控制器整合方案。本次装载吉泰科产品的公交将在“巴铁”第一大城市卡拉奇运营，这也代表了吉泰科为国际服务的版图又新增了一块。
卡拉奇作为巴基斯坦“经济首都”，有2000万人生活于此。在如此庞大的人口基数下，道路堵塞与市民出行问题日渐突出，亟需建立起一套完善的公共交通网络。基于此，卡拉奇的橙线、绿线两条BRT专线应运而生。
快速公交系统（Bus Rapid Transit）作为一种介于轨道交通与常规交通之间的新型运营系统，它利用现代公交技术配合智能交通的运营管理，使传统的公交系统基本达到轨道交通的服务水平，而其投资及运营成本又较轨道交通低而与常规公交接近。
通过前期的考察，确定了采用混合动力公交，吉泰科为此拿出了G03与G04双电机控制器组合方案。两款控制器核心单元均采用国际领先企业产品，在提升性能的同时，也为车辆运行提供更快速地动力响应。 汽车级用料，坚持提供高质量产品，确保在实际使用中稳定运行，提供更安全的公交出行体验。
综合卡拉奇地形特点，本批新能源公交进行轻量化改造，而吉泰科潜心研发的控制器有着高空间利用率优势，为整车减重起到不可或缺的作用。
- G03尺寸为488mm×244mm×110mm，重量仅为13.5kg
- G04尺寸为600mm×300mm×142.8mm，重量为22kg
在应对爬坡需求上，吉泰科控制器更是显得游刃有余。在恒定功率下，依旧可以稳定输出扭矩，且通过优化的扭矩控制策略，能让车辆平稳的在斜坡运行或是停下而不发生后溜。
- G03额定电压为540V，额定功率132kW，峰值功率198kW
- G04额定电压为540V，额定功率200kW，峰值功率300kW
作为一辆混合动力车辆，节能环保也被视为一项重要指标。在低速或者减速行驶过程中，控制器能自动识别车辆状态，为车辆提供电能驱动，减少尾气排放。G03控制器不仅具有能量回收功能，在车辆运行中将冗余能量进行存储，增长了行驶距离，而且能够时刻监控电池容量，动态调整能量回馈，确保车辆状态始终处于平衡。
公交车这一服务于公共系统的载具，天生具有高使用率的属性，容易出现各种状况，车辆系统运行的安全也就不容小觑。此次搭载的G03、G04两款控制器都具有短路，过流，过压，过热，过载和编码器断开等保护功能，且防护等级达到了IP67，轻松应对突发状况，只为给客户带来最佳体验。
能预见在不久的将来，本次中标的新能源公交会在卡拉奇橙绿BRT通道上行驶，既是公交线也是城市风景线，双线合一。在给当地市民带来了便捷的出行环境同时，也为环境保护事业贡献力量，为“巴铁”更多城市推行BRT提供可复制经验。
A well-known bus manufacturer in China successfully secured an order of one hundred 18-meter hybrid electric buses recently from a Karachi company. GTAKE, as a premium supplier of electric vehicle (EV) motor controller, supplied integrated solutions of EV motor controllers for this batch of buses.
These buses, powered by GTAKE controllers, will be operated in Karachi, the largest city of Pakistan, which further adds GTAKE's global presence in the field of EV motor controllers.
Karachi, the economic center of Pakistan, is a metropolitan with a population of 20 million. With such a large population base, the issues of road congestion and citizen travel demand are becoming more and more prominent, and there is an urgent need to establish a comprehensive network for public transportation. Two BRT special lines, the orange line and the green line, came into being in Karachi under this circumstance.
BRT ( Bus Rapid Transit), as a new operating system, uses modern bus technology with intelligent traffic management, enabling the traditional bus transportation system basically to reach the level of service of rail transportation, while its investment and operating costs are lower than rail transit and close to conventional buses. With the previous in-depth survey, the customer decided to adopt hybrid system solution for the buses. Models G03 and G04 motor controllers are utilized in the system, according to the proposal presented by GTAKE. The core components of the two controllers are from leading companies, not only guaranteeing the performance,
but also providing quick dynamic response for the operation. GTAKE persists in providing high-quality products by virtue of optimal software system, as well as automotive grade components to ensure safe operation of the vehicle, and provide a comfortable bus travel experience for passengers.
Based on the terrain characteristics of Karachi, this batch of electric buses select to adopt lightweight solution. The controller developed by GTAKE has the advantage of high space utilization, playing a significant role in reducing the weight of the vehicle.
·G03 external dimensions: 488mm × 244mm × 110mm; weight: 13.5kg
·G04 external dimensions: 600mm × 300mm × 142.8mm; weight: 22kg
The GTAKE controllers are able to meet the climbing demand easily. Under the constant power mode, the output torque can be maintained to be stable and sufficient. Through an optimized torque control tactic, the vehicle can run on slopes smoothly and stop comfortably without sliding backward.
·G03 rated voltage: 540V; rated power: 132 kW; peak power: 198 kW
·G04 rated voltage: 540V; rated power: 200 kW; peak power: 300 kW
Energy saving and environmental protection are regarded as two important indexes for a hybrid electric vehicle. During low-speed or decelerating driving, the controller can automatically recognize the operating status of the vehicle, and shift to the mode of electric power supply for the vehicle in order to reduce exhaust emissions. The G03 controller is equipped with the mechanism of energy recycling. It stores regenerating energy dynamically, and monitors the battery capacity at all times, ensuring the vehicle is always in a balanced status and increase the mileage remarkably.
Bus, as a way of transportation to serve the public, is endowed with properties of frequent-use, and prone to go through complex city roads and weather conditions. The safety of the vehicle system, therefore, must be treated as the paramount criterion. The models G03 and G04 motor controllers in the bus are programmed with all-round protections, such as quick protection on short-circuit, overcurrent, overvoltage, over-temperature, overload, encoder disconnection, etc., also their IP grade meets the standard IP67.
These hybrid electric buses are expected to run in Karachi Orange & Green BRT pass in the near future, a beautiful landscape of the city. It will bring convenient travels to local citizens, and significantly contribute to the environmental protection as well. It is also believed it will provide reproducible experience to more cities in Pakistan to carry out the settlement of BRT.
