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海拉制动产品实现更全面的车辆覆盖
Marcel Wiedman表示:"通过精准拓展制动产品系列,我们已实现近乎全面的市场覆盖,能够为客户提 供更丰富的选择以及更高的供货保障率。"例如,海拉售后的制动片与制动盘市场覆盖率已接近99%, 制动液压产品覆盖率则超过85%。此外,海拉售后在电动及混合动力车型制动片市场也实现了超过90% 的覆盖(制动盘覆盖率超过85%)。 经销商与维修厂不仅能从琳琅满目的产品矩阵中获利,更能享受到一应俱全的技术服务。此外,海拉强 大的国际销售网络,还为产品的高供应率、短交付周期以及卓越的物流服务提供了有力保障。 在新型无沉积制动卡钳(NEWMAN产品系列)领域,产品编号将从350个扩充至500个,从而覆盖更广 泛的车型。制动盘的产品供应也在不断拓展,该系列新增约50个产品编号,既包含传统制动盘,也涵盖 双片式制动盘。此外,针对宝马、奔驰等以双片式制动盘作为原厂配件的车型,海拉还增补了一体式且 成本优化的制动盘。与双片式制动盘不同,这些制动盘采用整体灰铸成型工艺,没有铝制帽。和整个产 品系列一样,它们均符合ECE-R 90指令要求,并经过涂层处理,具备防腐特性。同时,特殊的一体式 制动盘采用高碳灰铸铁制造,即便在极端条件 ...
三问三解 | 制动卡钳也会影响续航?
Group 1 - The article discusses various factors affecting the range of electric vehicles, emphasizing that beyond low temperatures, many subtle elements can impact battery performance [1][2] - Brake calipers can significantly influence vehicle range due to drag torque when they do not fully release, leading to increased energy consumption [4][6] - Data from manufacturers indicate that at -7°C, drag torque from brake calipers can increase by 50%, potentially reducing the actual range of a 500 km electric vehicle by 15-20 km [4][6] Group 2 - Design flaws in electronic parking brake systems can lead to excessive drag torque, which not only raises brake disc temperatures but also diminishes range [6] - Insufficient lubrication of caliper guide pins and other mechanical factors can also contribute to drag torque, resulting in uneven wear on brake components [8] - The average drag torque for mainstream calipers is around 1.5 Nm, with some suppliers offering calipers that can reduce this to below 1.0 Nm, enhancing vehicle range [10] Group 3 - The viscosity of lubricating oil in the drivetrain increases in low temperatures, leading to reduced transmission efficiency and further impacting winter range [12] - Tire rolling resistance is a significant factor affecting range, as it is influenced by the weight of electric vehicles and the properties of the tires [14][16] - Michelin data indicates that 90%-95% of tire rolling resistance comes from the repeated deformation of the tire during rolling [16] Group 4 - Lowering tire deformation can reduce rolling resistance, and optimizing rubber materials can also help achieve this [18] - The wind resistance coefficient does not always correlate with energy efficiency, as factors like vehicle speed play a crucial role in energy consumption [19][21] - Energy consumption increases exponentially with speed; for instance, at 120 km/h, the power requirement can reach approximately 31 kW, compared to 2.3 kW at 30 km/h [25]